Miraclin TA, Mathew BS, Mammen JJ, Ramachandran SV, Kumar S, Bhattacharjee S, Sudarsanam TD, Sathyendra S, Prabhakar Abhilash KP, Jayaseelan V, Rupali P. Slow parasite clearance, absent K13-propeller gene polymorphisms and adequate artesunate levels among patients with malaria: A pilot study from southern India. Natl Med J India. 2019 Jul-Aug;32(4):200-206. doi: 10.4103/0970-258X.291292. PMID: 32769239.

Nambiar A, Christopher DJ, Mammen J, David T, Kang G, David S. Informed consent among nursing students participating in biomedical research. Indian J Med Ethics. 2012 Jul-Sep;9(3):186-9. doi: 10.20529/IJME.2012.062. PMID: 22864079.

Ganapule A, Jain P, Abubacker FN, Korula A, Abraham A, Mammen J, George B, Mathews V, Srivastava A, Viswabandya A. Surgical procedures in patients with Glanzmann's thrombasthenia: case series and literature review. Blood Coagul Fibrinolysis. 2017 Mar;28(2):171-175. doi: 10.1097/MBC.0000000000000524. PMID: 27273143.

Aaron S, Alexander M, Thomas M, George B, Mammen J. Cerebral venous thrombosis due to homozygous factor V Leiden mutation. Neurol India. 2009 Jan-Feb;57(1):91. doi: 10.4103/0028-3886.48796. PMID: 19305091.

Viswabandya A, Mathews V, George B, Nair SC, Baidya S, Mammen JJ, Chandy M, Srivastava A. Successful surgical haemostasis in patients with von Willebrand disease with Koate DVI. Haemophilia. 2008 Jul;14(4):763-7. doi: 10.1111/j.1365-2516.2008.01755.x. Epub 2008 Apr 24. PMID: 18445014.

Dave RG, Geevar T, Mammen JJ, Vijayan R, Mahasampath G, Nair SC. Clinical utility of activated partial thromboplastin time clot waveform analysis and thrombin generation test in the evaluation of bleeding phenotype in Hemophilia A. Indian J Pathol Microbiol. 2021 Jan-Mar;64(1):117-122. doi: 10.4103/IJPM.IJPM_336_19. PMID: 33433420.

Miraclin TA, Mathew BS, Mammen JJ, Ramachandran SV, Kumar S, Bhattacharjee S, Sudarsanam TD, Sathyendra S, Prabhakar Abhilash KP, Jayaseelan V, Rupali P. Slow parasite clearance, absent K13-propeller gene polymorphisms and adequate artesunate levels among patients with malaria: A pilot study from southern India. Natl Med J India. 2019 Jul-Aug;32(4):200-206. doi: 10.4103/0970-258X.291292. PMID: 32769239.

Nambiar A, Christopher DJ, Mammen J, David T, Kang G, David S. Informed consent among nursing students participating in biomedical research. Indian J Med Ethics. 2012 Jul-Sep;9(3):186-9. doi: 10.20529/IJME.2012.062. PMID: 22864079.

Ganapule A, Jain P, Abubacker FN, Korula A, Abraham A, Mammen J, George B, Mathews V, Srivastava A, Viswabandya A. Surgical procedures in patients with Glanzmann's thrombasthenia: case series and literature review. Blood Coagul Fibrinolysis. 2017 Mar;28(2):171-175. doi: 10.1097/MBC.0000000000000524. PMID: 27273143.

Aaron S, Alexander M, Thomas M, George B, Mammen J. Cerebral venous thrombosis due to homozygous factor V Leiden mutation. Neurol India. 2009 Jan-Feb;57(1):91. doi: 10.4103/0028-3886.48796. PMID: 19305091.

Viswabandya A, Mathews V, George B, Nair SC, Baidya S, Mammen JJ, Chandy M, Srivastava A. Successful surgical haemostasis in patients with von Willebrand disease with Koate DVI. Haemophilia. 2008 Jul;14(4):763-7. doi: 10.1111/j.1365-2516.2008.01755.x. Epub 2008 Apr 24. PMID: 18445014.

Dave RG, Geevar T, Mammen JJ, Vijayan R, Mahasampath G, Nair SC. Clinical utility of activated partial thromboplastin time clot waveform analysis and thrombin generation test in the evaluation of bleeding phenotype in Hemophilia A. Indian J Pathol Microbiol. 2021 Jan-Mar;64(1):117-122. doi: 10.4103/IJPM.IJPM_336_19. PMID: 33433420.

F. Sheeba, R Thamburaj ,J S Michael , P Maqlin , J J Mammen. Segmentation of sputum smear images for detection of tuberculosis bacilli. BMC Infectious Diseases. 2012, 12(Suppl 1):O14 Link

Olson JD, Jennings I, Meijer P, Bon C, Bonar R, Favaloro EJ, Higgins RA, Keeney M, Mammen J, Marlar RA, Meley R, Nair SC, Nichols WL, Raby A, Reverter JC, Srivastava A, Walker I. Lack of grading agreement among international hemostasis external quality assessment programs. Blood Coagul Fibrinolysis. 2018 Jan;29(1):111-119. doi: 10.1097/MBC.0000000000000690. PMID: 29232255; PMCID: PMC5794233.

Damodar S, George B, Mammen J, Mathews V, Srivastava A, Chandy M. Pre-transplant reduction of isohaemagglutinin titres by donor group plasma infusion does not reduce the incidence of pure red cell aplasia in major ABO-mismatched transplants. Bone Marrow Transplant. 2005 Aug;36(3):233-5. doi: 10.1038/sj.bmt.1705031. PMID: 15908965.

Mammen JJ, Kumar S, Thomas L, Kumar G, Zachariah A, Jeyaseelan L, Peter JV, Agarwal A, Mukherjee A, Chatterjee P, Bhatnagar T, Rasalam JE, Chacko B, Mani T, Joy M, Rupali P, Murugesan M, Daniel D, Latha B, Bundas S, Kumar V, Dosi R, Khambholja JR, de Souza R, Chander BT, Bahadur S, Dube S, Suri A, Jindal A, Shrivastav O, Barge V, Bajpayee A, Malhotra P, Singh N, Tambe M, Sharma N, Bhat S, Kaulgud RS, Gurtoo A, Reddy DH, Upadhyay K, Jain A, Patel TC, Nagori I, Jha PR, Babu KVS, Aparna C, Panjwani SJ, Natarajan M, Baldi M, Khadke VK, Dua S, Singh R, Sharma A, Sharma J, Gokhale YA, Yadav PD, Sapkal G, Kaushal H, Kumar VS. Factors associated with mortality among moderate and severe patients with COVID-19 in India: a secondary analysis of a randomised controlled trial. BMJ Open. 2021 Oct 4;11(10):e050571. doi: 10.1136/bmjopen-2021-050571. PMID: 34607865; PMCID: PMC8491003.

Asirvatham ES, Mammen JJ, Lakshman J, Sarman CJ, Charles B, Upadhyaya S, Rajan S. Assessment of Performance of Blood Banks in India: A National Level Cross Sectional Study. Indian J Hematol Blood Transfus. 2021 Oct;37(4):640-647. doi: 10.1007/s12288-021-01399-9. Epub 2021 Jan 24. PMID: 34744346; PMCID: PMC8523628.

Dave RG, Geevar T, Chellaiya GK, Mammen JJ, Vijayan R, Samuel A, Gowri M, Nair SC. Stability and utility of flow cytometric platelet activation tests: A modality to bridge the gap between diagnostic demand and supply. Platelets. 2022 Feb 28:1-9. doi: 10.1080/09537104.2022.2042232. Epub ahead of print. PMID: 35225160.

Dave RG, Geevar T, Chellaiya GK, Mammen JJ, Vijayan R, Samuel A, Gowri M, Nair SC. Stability and utility of flow cytometric platelet activation tests: A modality to bridge the gap between diagnostic demand and supply. Platelets. 2022 Feb 28:1-9. doi: 10.1080/09537104.2022.2042232. Epub ahead of print. PMID: 35225160.

Mammen JJ, Asirvatham ES, Sarman CJ, Ranjan V, Charles B. A review of legal, regulatory, and policy aspects of blood transfusion services in India: Issues, challenges, and opportunities. Asian J Transfus Sci. 2021 Jul-Dec;15(2):204-211. doi: 10.4103/ajts.AJTS_65_20. Epub 2021 Nov 1. PMID: 34908756; PMCID: PMC8628249.

Mammen JJ, Asirvatham ES, Lakshmanan J, Sarman CJ, Mani T, Charles B, Upadhyaya S, Rajan S. A national level estimation of population need for blood in India. Transfusion. 2021 Jun;61(6):1809-1821. doi: 10.1111/trf.16369. Epub 2021 May 15. PMID: 33991428.

Hazra D, Sen I, Stephen E, Agarwal S, Nair SC, Mammen J. Evaluation of Factor VIII as a Risk Factor in Indian Patients with DVT. Surg Res Pract. 2015;2015:307879. doi: 10.1155/2015/307879. Epub 2015 Sep 1. PMID: 26421318; PMCID: PMC4569765.

Geevar T, Dave RG, Mathews NS, Kumar S, Mammen JJ, Vijayan R, Aboobacker FN, Abraham A, Srivastava A, Nair SC. Laboratory characterization of obligate carriers of type 3 von Willebrand disease with a potential role for Platelet Function Analyzer (PFA-200). Int J Lab Hematol. 2022 Jan 5. doi: 10.1111/ijlh.13787. Epub ahead of print. PMID: 34986515.

Nair SC, Mammen JJ. Repeat voluntary non-remunerated blood donor is the best quality indicator for blood safety. Indian J Med Res. 2015 Jun;141(6):749-52. doi: 10.4103/0971-5916.160687. PMID: 26205016; PMCID: PMC4525398.

Nair SC, Arora N, Jain S, Inbakumar D, Mammen J, Sitaram U. Mean reticulocyte volume enhances the utility of red cell mean sphered cell volume in differentiating peripheral blood spherocytes of hereditary spherocytosis from other causes. Indian J Pathol Microbiol. 2015 Jul-Sep;58(3):307-9. doi: 10.4103/0377-4929.162836. PMID: 26275251.

Mammen JJ, Asirvatham ES, Lakshmanan J, Sarman CJ, Pandey A, Ranjan V, Charles B, Mani T, Khaparde SD, Upadhyaya S, Rajan S. The clinical demand and supply of blood in India: A National level estimation study. PLoS One. 2022 Apr 6;17(4):e0265951. doi: 10.1371/journal.pone.0265951. PMID: 35385543; PMCID: PMC8986005.

Adcock DM, Mammen J, Nair SC, de Lima Montalvão SA. Quality laboratory issues in bleeding disorders. Haemophilia. 2016 Jul;22 Suppl 5:84-9. doi: 10.1111/hae.12991. PMID: 27405682.

Murugesan M, Mathews P, Paul H, Karthik R, Mammen JJ, Rupali P. Protective effect conferred by prior infection and vaccination on COVID-19 in a healthcare worker cohort in South India. PLoS One. 2022 May 20;17(5):e0268797. doi: 10.1371/journal.pone.0268797. PMID: 35594270; PMCID: PMC9122209.

Buchta C, Coucke W, Huf W, Griesmacher A, Müller MM, Mayr WR, Flesland Ø, Politis C, Wiersum-Osselton J, Aburto A, Badrick T, Bouacida L, Budina M, Duenas JA, Geilenkeuser WJ, Guimarães AVP, Hecimovic A, Jutzi M, Lee CK, Lim YA, Mammen J, Molnár PM, Mokhtari A, Morabito G, Muñiz-Diaz E, Niekerk T, Pakkanen A, Pezzati P, Popa R, Sárkány E, Siest JP, Suvagandha D, Thelen M, Ullhagen J, Vitkus D, Körmöczi GF. External quality assessment providers' services appear to more impact the immunohaematology performance of laboratories than national regulatory and economic conditions. Clin Chem Lab Med. 2022 Jan 19;60(3):361-369. doi: 10.1515/cclm-2021-1219. PMID: 35041777.

Dhanasekaran V, Nair SC, Geevar T, Singh S, Mammen JJ. Utility of Cryohemolysis Test in the Diagnosis of Hereditary Spherocytosis. Indian J Hematol Blood Transfus. 2023 Jul;39(3):499-502. doi: 10.1007/s12288-022-01615-0. Epub 2022 Dec 9. PMID: 37304467; PMCID: PMC10247663.

Arpana Palle, Josephine Thomas, Usha Sitaram, Vandana Kamath, Joy J Mammen, Sukesh C Nair; Identifying Myelodysplastic Syndrome Among Patients with Anemia: Neutrophil Characteristics Computed by a Cell Counter (Beckman Coulter LH750), An Effective Screening Tool. Blood 2011; 118 (21): 5027. doi: https://doi.org/10.1182/blood.V118.21.5027.5027

Dhoot A, Mammen JJ, Mathews NS, Kannangai R, Daniel D, Prasannakumar S. Internal quality control for HIV testing of blood donors - Dried tube specimen as a cost-effective alternative. Asian J Transfus Sci. 2022 Jul-Dec;16(2):231-237. doi: 10.4103/ajts.ajts_75_21. Epub 2022 May 26. PMID: 36687551; PMCID: PMC9855207.

Rastogi S, Chandran Nair S, Murugan P, Sukumar AS, Mammen JJ, Mullai S. Overall equipment effectiveness, efficiency and slide review analysis of high-end hematology analyzers. Pract Lab Med. 2022 Apr 18;30:e00275. doi: 10.1016/j.plabm.2022.e00275. PMID: 35601458; PMCID: PMC9117814.

Jayaram A, Mathews NS, Nair SC, Geevar T, Rose W, Verghese VP, Mathuram AJ, Gunasekaran K, Abraham AM, Mammen JJ. High fluorescent lymphocyte cell count and scattergram patterns on the Sysmex XN series cell counters-Novel parameters in early and reliable diagnosis of dengue on a background of acute febrile illness. Int J Lab Hematol. 2021 Aug;43(4):O156-O160. doi: 10.1111/ijlh.13478. Epub 2021 Jan 25. PMID: 33491304.

Prabhakar Abhilash KP, James RI, Paul HE, Murugesan M, Abraham DT, Christopher J, Valsan A, Mammen JJ, Rupali P, Jesudoss I, Selvan S, Mathews P, Peter JV. Effectiveness of a monitored home isolation program for COVID-19 infection during the second wave of the pandemic. Med J Armed Forces India. 2022 Sep 2. doi: 10.1016/j.mjafi.2022.06.022. Epub ahead of print. PMID: 36068859; PMCID: PMC9437766.

Vijayalekshmi B, Sharma A, Prabhu SB, Nair SC, Mammen J, Goel A, Zachariah UG, Dutta AK, Balasubramanian KA, Elias E, Eapen CE. Reticuloendothelial activation correlates with disease severity and predicts mortality in severe alcoholic hepatitis. Eur J Gastroenterol Hepatol. 2021 Dec 1;33(1S Suppl 1):e329-e334. doi: 10.1097/MEG.0000000000002056. PMID: 33470708.

Dave RG, Geevar T, Aaron S, Ninan Benjamin R, Mammen J, Kumar S, Vijayan R, Gowri M, C Nair S. Diagnostic utility of flow cytometry based coated-platelets assay as a biomarker to predict thrombotic or hemorrhagic phenotype in acute stroke. Cytometry B Clin Cytom. 2021 Jun 21. doi: 10.1002/cyto.b.22026. Epub ahead of print. PMID: 34152689.

Siromani U, Tsubaki T, Daniel D, Mammen JJ, Nair SC. Perspectives and attitudes to voluntary blood donation in a tertiary referral hospital blood bank. Asian J Transfus Sci. 2013 Jul;7(2):158-9. doi: 10.4103/0973-6247.115589. PMID: 24014951; PMCID: PMC3757781.

Siromani U, Rita Isaac TT, Daniel D, Kg S, Mammen JJ, Nair SC. Recruitment and retention of voluntary blood donors through electronic communication. Acta Inform Med. 2013;21(2):142. doi: 10.5455/aim.2013.21.142-142. PMID: 24324291; PMCID: PMC3766533.

Thomas L, Chandran J, Goel A, Jacob E, Chacko B, Subramani K, Agarwal I, Varughese S, David VG, Daniel D, Mammen J, Balakrishnan V, Balasubramanian KA, Lionel AP, Adhikari DD, Abhilash KPP, Elias E, Eapen CE, Zachariah U. Improving Transplant-free Survival With Low-volume Plasma Exchange to Treat Children With Rodenticide Induced Hepatotoxicity. J Clin Exp Hepatol. 2023 Mar-Apr;13(2):252-258. doi: 10.1016/j.jceh.2022.10.013. Epub 2022 Nov 12. PMID: 36950489; PMCID: PMC10025587.

Siromani U, Thasian T, Selvaraj KG, Daniel D, Mammen JJ, Nair SC, Isaac R. Determinants which influence to donate blood voluntarily at a northeast district of the state of Tamil Nadu, South India. Indian J Community Med. 2014 Oct;39(4):250. doi: 10.4103/0970-0218.143031. PMID: 25364151; PMCID: PMC4215508.

Sardar D, Mathews N, Mammen J, Nair SC, Jacob S, Patel L, Thomas A, Jhanwar S, Sharma A, Sen M, Vijayalekshmi B, Balasubramanian KA, Subramani K, Thomas L, Abhilash KPP, Zachariah U, Elias E, Goel A, Eapen CE. Rodenticidal hepatotoxicity: Raised plasma Von Willebrand factor levels predict in-hospital survival and preliminary report of the outcome of Von Willebrand factor reducing management protocol. Indian J Gastroenterol. 2019 Dec;38(6):527-533. doi: 10.1007/s12664-019-00989-w. Epub 2020 Feb 19. PMID: 32077040.

Elangovan D, Perumalla S, Rose W, Verghese VP, Mammen J, Gowri MS, Jude Prakash JA. Assessment of two immunoassays for detection of IgM antibodies to scrub typhus using a serum panel. Indian J Med Microbiol. 2019 Oct-Dec;37(4):584-586. doi: 10.4103/ijmm.IJMM_20_130. PMID: 32436884.

Kamath V, Gnanasekaran KK, Mammen J. MYH9-related disorder, a probable May-Hegglin anomaly case series: A tertiary care experience. Hematol Oncol Stem Cell Ther. 2016 Dec;9(4):137-140. doi: 10.1016/j.hemonc.2016.08.002. Epub 2016 Sep 2. PMID: 27614228.

Siromani U, Rajaiah M, Daniel D, Mammen JJ, Nair SC. Ahead to 100% of voluntary nonremunerated blood donation at a tertiary referral hospital blood bank in South India. Asian J Transfus Sci. 2012 Jul;6(2):190. doi: 10.4103/0973-6247.98954. PMID: 22988391; PMCID: PMC3439765.

Sasidharan BK, James RI, Sathyendra S, Harsh R, Jeba Sundararaj J, Ravindran V, T HMT, Ashok N, Thirunavukkarasu MM, Punitha JV, George TK, Isaac BTJ, Zechariah AJ, David SNJ, Yesupatham DP, Irodi A, Aruldas V, Keshava SN, Zachariah A, Kang G, Mammen JJ. UDHAVI Community Support During India's Second COVID-19 Wave: A Descriptive Study on a Tertiary Care Center's Pandemic Response Helpline. Glob Health Sci Pract. 2023 Oct 30;11(5):e2200315. doi: 10.9745/GHSP-D-22-00315. PMID: 37903577; PMCID: PMC10615235.

Raykar NP, Raguveer V, Abdella YE, Ali-Awadh A, Arora H, Asamoah-Akuoko L, Barnes LS, Cap AP, Chowdhury A, Cooper Z, Delaney M, DelSignore M, Inam S, Ismavel VA, Jensen K, Kumar N, Lokoel G, Mammen JJ, Nathani P, Nisingizwe MP, Puyana JC, Riviello R, Roy N, Salim A, Tayou-Tagny C, Virk S, Wangamati CW. Innovative blood transfusion strategies to address global blood deserts: a consensus statement from the Blood Delivery via Emerging Strategies for Emergency Remote Transfusion (Blood DESERT) Coalition. Lancet Glob Health. 2024 Mar;12(3):e522-e529. doi: 10.1016/S2214-109X(23)00564-8. PMID: 38365422.

Kundu S, Munoz Valencia A, Virk SK, Kumar N, Gadgil A, Mammen JJ, Roy N, Raykar N. Defining blood deserts and access to blood products for 660 million people: a geospatial analysis of eight states in Northern India. BMJ Glob Health. 2024 Oct 21;9(10):e015637. doi: 10.1136/bmjgh-2024-015637. PMID: 39433405; PMCID: PMC11499795.

Gupta, V., Dave, R., Geever, T. et al. Hermansky-Pudlak syndrome 2 — a novel mutation with factor VII deficiency: a fluke from India. J Rare Dis 4, 39 (2025). https://doi.org/10.1007/s44162-025-00084-z

De R, Deepak MB, Stephen L, Lakshmi K, Mammen J, Edison ES. Exploring the Relationship between Extended Red Blood Cell Indices and Platelet Indices in Voluntary Blood Donors. J Appl Lab Med. 2025 Sep 3;10(5):1119-1132. doi: 10.1093/jalm/jfaf078. PMID: 40613574.

John EE, Valson AT, George R, Grace PJ, Anthony P, Jose N, Mani SSR, Johny J, Alam R, Lalwani M, Eapen JJ, Yusuf S, Thomas A, Alexander S, David VG, Christudoss P, Mammen J, Varughese S. Impact of Noncommunicable Diseases and Heat Stress on Estimated Glomerular Filtration Rate in Security Officers at a Tertiary Care Hospital in South India. Indian J Nephrol. 2025 Mar-Apr;35(2):243-252. doi: 10.25259/ijn_386_23. Epub 2024 Jun 29. PMID: 40060069; PMCID: PMC11885958.

Chandy S, Yoshimatsu K, Ulrich RG, Mertens M, Okumura M, Rajendran P, John GT, Balraj V, Muliyil J, Mammen J, Abraham P, Arikawa J, Sridharan G. Seroepidemiological study on hantavirus infections in India. Trans R Soc Trop Med Hyg. 2008 Jan;102(1):70-4. doi: 10.1016/j.trstmh.2007.09.016. Epub 2007 Nov 9. PMID: 17996913.