Premkumar K, Vinod E, Sathishkumar S, Pulimood AB, Umaefulam V, Prasanna Samuel P, John TA. Self-directed learning readiness of Indian medical students: a mixed method study. BMC Med Educ. 2018 Jun 8;18(1):134. doi: 10.1186/s12909-018-1244-9. PMID: 29884155; PMCID: PMC5994133.

Tharion E, Samuel P, Rajalakshmi R, Gnanasenthil G, Subramanian RK. Influence of deep breathing exercise on spontaneous respiratory rate and heart rate variability: a randomised controlled trial in healthy subjects. Indian J Physiol Pharmacol. 2012 Jan-Mar;56(1):80-7. PMID: 23029969.

Kakarlapudi SR, Chacko A, Samuel P, Verghese VP, Rose W. Comparison of Scrub Typhus Meningitis with Acute Bacterial Meningitis and Tuberculous Meningitis. Indian Pediatr. 2018 Jan 15;55(1):35-37. PMID: 29396933.

Rupali P, Mannam S, Bella A, John L, Rajkumar S, Clarence P, Pulimood SA, Samuel P, Karthik R, Abraham OC, Mathai D. Risk factors for mortality in a south Indian population on generic antiretroviral therapy. J Assoc Physicians India. 2012 Dec;60:11-4. PMID: 23781664.

Moorthy M, Samuel P, Peter JV, Vijayakumar S, Sekhar D, Verghese VP, Agarwal I, Moses PD, Ebenezer K, Abraham OC, Thomas K, Mathews P, Mishra AC, Lal R, Muliyil J, Abraham AM. Estimation of the burden of pandemic(H1N1)2009 in developing countries: experience from a tertiary care center in South India. PLoS One. 2012;7(9):e41507. doi: 10.1371/journal.pone.0041507. Epub 2012 Sep 5. PMID: 22957015; PMCID: PMC3434194.

Joseph CM, Jepegnanam TS, Ramasamy B, Cherian VM, Nithyananth M, Sudarsanam TD, Premkumar PS. Time to debridement in open high-grade lower limb fractures and its effect on union and infections: A prospective study in a tropical setting. J Orthop Surg (Hong Kong). 2020 Jan-Apr;28(1):2309499020907558. doi: 10.1177/2309499020907558. PMID: 32186234.

Premkumar K, Vinod E, Sathishkumar S, Pulimood AB, Umaefulam V, Prasanna Samuel P, John TA. Self-directed learning readiness of Indian medical students: a mixed method study. BMC Med Educ. 2018 Jun 8;18(1):134. doi: 10.1186/s12909-018-1244-9. PMID: 29884155; PMCID: PMC5994133.

Tharion E, Samuel P, Rajalakshmi R, Gnanasenthil G, Subramanian RK. Influence of deep breathing exercise on spontaneous respiratory rate and heart rate variability: a randomised controlled trial in healthy subjects. Indian J Physiol Pharmacol. 2012 Jan-Mar;56(1):80-7. PMID: 23029969.

Kakarlapudi SR, Chacko A, Samuel P, Verghese VP, Rose W. Comparison of Scrub Typhus Meningitis with Acute Bacterial Meningitis and Tuberculous Meningitis. Indian Pediatr. 2018 Jan 15;55(1):35-37. PMID: 29396933.

Rupali P, Mannam S, Bella A, John L, Rajkumar S, Clarence P, Pulimood SA, Samuel P, Karthik R, Abraham OC, Mathai D. Risk factors for mortality in a south Indian population on generic antiretroviral therapy. J Assoc Physicians India. 2012 Dec;60:11-4. PMID: 23781664.

Moorthy M, Samuel P, Peter JV, Vijayakumar S, Sekhar D, Verghese VP, Agarwal I, Moses PD, Ebenezer K, Abraham OC, Thomas K, Mathews P, Mishra AC, Lal R, Muliyil J, Abraham AM. Estimation of the burden of pandemic(H1N1)2009 in developing countries: experience from a tertiary care center in South India. PLoS One. 2012;7(9):e41507. doi: 10.1371/journal.pone.0041507. Epub 2012 Sep 5. PMID: 22957015; PMCID: PMC3434194.

Joseph CM, Jepegnanam TS, Ramasamy B, Cherian VM, Nithyananth M, Sudarsanam TD, Premkumar PS. Time to debridement in open high-grade lower limb fractures and its effect on union and infections: A prospective study in a tropical setting. J Orthop Surg (Hong Kong). 2020 Jan-Apr;28(1):2309499020907558. doi: 10.1177/2309499020907558. PMID: 32186234.

Peter JV, Jerobin J, Nair A, Bennett A, Samuel P, Chrispal A, Abraham OC, Mathews KP, Fleming JJ, Oommen A. Clinical profile and outcome of patients hospitalized with dimethyl and diethyl organophosphate poisoning. Clin Toxicol (Phila). 2010 Nov;48(9):916-23. doi: 10.3109/15563650.2010.528425. PMID: 21171848.

Premkumar P, Antonisamy B, Mathews J, Benjamin S, Regi A, Jose R, Kuruvilla A, Mathai M. Birth weight centiles by gestational age for twins born in south India. BMC Pregnancy Childbirth. 2016 Mar 24;16:64. doi: 10.1186/s12884-016-0850-y. PMID: 27012538; PMCID: PMC4806424.

Nehru GA, Pai R, Samuel P, Chacko AG, Chacko G. Status of O⁶ -methylguanine-DNA methyltransferase [MGMT] gene promoter methylation among patients with glioblastomas from India. Neurol India. 2012 Sep-Oct;60(5):481-6. doi: 10.4103/0028-3886.103190. PMID: 23135024.

Ivan James Prithishkumar, Deepak Vinod Francis, Mannaseh Nithyanand, Viju Daniel Verghese, Prasanna Samuel. Morphometry of the distal radius – an osteometric study in the Indian population. Indian J Basic Appl Med Res. 2012 Jun;1(3):166–71.

Arun R, Inbakamal S, Tharyan A, Premkumar PS. Spousal Caregiver Burden and Its Relation with Disability in Schizophrenia. Indian J Psychol Med. 2018 Jan-Feb;40(1):22-28. doi: 10.4103/IJPSYM.IJPSYM_204_17. PMID: 29403125; PMCID: PMC5795674.

Tharion E, Kachroo U, Noel J, Samuel P. Cardiac Autonomic Activity, Personality Traits, and Academic Performance in First-Year Medical Students: A Gender-Specific Relation. Cureus. 2023 Nov 20;15(11):e49087. doi: 10.7759/cureus.49087. PMID: 38024029; PMCID: PMC10660775.

Christopher DJ, Priya N, Shankar D, Isaac B, DeLuca A, Sarkar S, Prakash Babu S, Samuel P, Cattamanchi A, Gupta A, Ellner J, Srinivasan S, Cox S, Thangakunam B. Tuberculin test using Indian indigenous purified-protein derivative (PPD) shows only moderate agreement with international standard PPD. J Clin Tuberc Other Mycobact Dis. 2023 Dec 1;34:100404. doi: 10.1016/j.jctube.2023.100404. PMID: 38174327; PMCID: PMC10761766.

Thomas S, Duraisamy SK, Ahmed R, Abraham A, Vishwabandhya A, Mathews V, Srivastava A, Samuel P, Kannangai R, Abraham OC, George B, Abraham AM. Early detection, reactivation of cytomegalovirus DNA & immediate early (IE)-mRNA expression in hematopoietic stem cell-transplant patients. Indian J Med Microbiol. 2023 Dec 19;47:100521. doi: 10.1016/j.ijmmb.2023.100521. Epub ahead of print. PMID: 38072066.

Christopher DJ, Isaac BTJ, John FB, Shankar D, Samuel P, Gupta R, Thangakunam B. Impact of post-COVID-19 lung damage on pulmonary function, exercise tolerance and quality of life in Indian subjects. PLOS Glob Public Health. 2024 Feb 1;4(2):e0002884. doi: 10.1371/journal.pgph.0002884. PMID: 38300923; PMCID: PMC10833535.

Zacchaeus NGP, Palanikumar P, Alexander H, Webster J, Nair IK, Sadanshiv M, Thomas RM, Deodhar D, Samuel P, Rupali P. Establishing an effective antimicrobial stewardship program at four secondary-care hospitals in India using a hub-and-spoke model. Antimicrob Steward Healthc Epidemiol. 2023 Jun 9;3(1):e99. doi: 10.1017/ash.2023.171. PMID: 37396191; PMCID: PMC10311688.

John J, Bavdekar A, Rongsen-Chandola T, Dutta S, Gupta M, Kanungo S, Sinha B, Srinivasan M, Shrivastava A, Bansal A, Singh A, Koshy RM, Jinka DR, Thomas MS, Alexander AP, Thankaraj S, Ebenezer SE, Karthikeyan AS, Kumar D, Njarekkattuvalappil SK, Raju R, Sahai N, Veeraraghavan B, Murhekar MV, Mohan VR, Natarajan SK, Ramanujam K, Samuel P, Lo NC, Andrews J, Grassly NC, Kang G; NSSEFI Study Team. Burden of Typhoid and Paratyphoid Fever in India. N Engl J Med. 2023 Apr 20;388(16):1491-1500. doi: 10.1056/NEJMoa2209449. PMID: 37075141; PMCID: PMC10116367.

Aguolu OG, Kiti MC, Nelson K, Liu CY, Sundaram M, Gramacho S, Jenness S, Melegaro A, Sacoor C, Bardaji A, Macicame I, Jose A, Cavele N, Amosse F, Uamba M, Jamisse E, Tchavana C, Briones HGM, Jarquín C, Ajsivinac M, Pischel L, Ahmed N, Mohan VR, Srinivasan R, Samuel P, John G, Ellington K, Joaquim OA, Zelaya A, Kim S, Chen H, Kazi M, Malik F, Yildirim I, Lopman B, Omer SB. Comprehensive profiling of social mixing patterns in resource poor countries: a mixed methods research protocol. medRxiv [Preprint]. 2023 Dec 5:2023.12.05.23299472. doi: 10.1101/2023.12.05.23299472. PMID: 38105989; PMCID: PMC10723497.

Abraham D, Premkumar PS, Platts-Mills JA, Tewari T, Bhat N, Rajendiran R, Gunalan H, Kang G. Effect of Non-Rotavirus Enteric Infections on Vaccine Efficacy in a ROTASIIL Clinical Trial. Am J Trop Med Hyg. 2024 Apr 16;110(6):1201-1209. doi: 10.4269/ajtmh.23-0348. PMID: 38626750; PMCID: PMC11154053.

Philip C, Selvarajan S, Nayak L, Jain H, Kulkarni U, Samuel P, Agrawal N, Kayal S, Mishra K, Pavitra DS, Jayachandran PK, Bala SC, Raghavan V, Paul M, Singh J, Sreeraj V, Mujumdar S, Nayak A, Prakash O, Barath U, Dharmaraj A, Rajendra A, Thorat J, Bagal B, Abraham A, Bhurani D, Ganesan P, Sengar M, Mathews V. Impact of the COVID-19 pandemic on treatment of patients with acute myeloid leukaemia in India. Br J Haematol. 2024 Nov;205(5):2058-2062. doi: 10.1111/bjh.19750. Epub 2024 Sep 16. PMID: 39279532.

Daniel DM, Hansdak SG, George T, Thomas SM, Balachandran A, Vanjare HA, Samuel P, Iyadurai R. Clinical Profile, Outcomes, and Predictors of Outcomes in Patients with Tuberculosis with Arachnoiditis. Int J Mycobacteriol. 2025 Apr 1;14(2):126-131. doi: 10.4103/ijmy.ijmy_29_25. Epub 2025 Jun 20. PMID: 40540656.

Chaudhary VS, Machathi A, Kharat N, Premkumar PS, Lingam R, Kannan P, Mohan VR. Clinicoepidemiological Characteristics of Recurrent Intussusception Among Children Younger than 2 Years Hospitalized in Four States in Southern and Western India. Indian J Pediatr. 2025 Dec;92(Suppl 1):163-169. doi: 10.1007/s12098-025-05804-3. Epub 2025 Dec 6. PMID: 41351726.

John NM, Ashok B, John O, V K, Abraham D, Samuel P, Sudhakar Y, Srai SKS, Jacob M. Daily oral iron supplementation produced greater improvements in hematological parameters than alternate day doses - A pilot double-blind randomized control trial in iron-deficient young women. Clin Nutr. 2026 Jan;56:106520. doi: 10.1016/j.clnu.2025.11.005. Epub 2025 Nov 25. PMID: 41354563.

T Jacob John, Prasanna Samuel Premkumar, Arpan Aryam John, Distance from sea as determinant of geographic variation of tuberculosis in India, Indian Journal of Tuberculosis, 2025, , ISSN 0019-5707, https://doi.org/10.1016/j.ijtb.2025.09.004.

handy, S.T., Thangakunam, B., Rudraraju, G. et al. Identification of respiratory diseases using peak energy analysis of acoustic cough. Egypt J Bronchol 19, 138 (2025). https://doi.org/10.1186/s43168-025-00486-z

Chaudhary VS, Kharat N, Machathi A, Lingam R, Kannan P, Ramasamy AV, Premkumar PS, Mohan VR. Epidemiological and Clinical Characteristics of Intussusception in Children Aged Under 2 Years: Comparison of the Southern and Western States in India, 2019-2022. Indian J Pediatr. 2025 Dec;92(Suppl 1):157-162. doi: 10.1007/s12098-025-05784-4. Epub 2025 Nov 10. PMID: 41212494; PMCID: PMC12801410.

Cheriyan A, Mariappan R, Jeyaseelan L, Samuel P, Annadurai S, George AJP, Devasia A, Kumar S, John NT. Effect of intravenous mannitol on renal function in patients undergoing laparoscopic nephron-sparing surgery: a randomized, double-blinded trial. Int Urol Nephrol. 2025 Dec;57(12):4065-4072. doi: 10.1007/s11255-025-04609-9. Epub 2025 Jun 13. PMID: 40514624.

Jacob A, John JS, Alexander H, George B, Selvarajan S, Samuel P, Nagayazhini R, Karthik R, Rupali P. A study on the effectiveness of an antifungal stewardship program in immunocompromised patients in a tertiary-care teaching hospital: The antifungal stewardship (TAFS) study. Indian J Med Microbiol. 2025 May-Jun;55:100865. doi: 10.1016/j.ijmmb.2025.100865. Epub 2025 Apr 26. PMID: 40294871.

Karuppasamy S, Premkumar PS, Mohan VR. Handling missing outcomes in time-to-event analyses in randomised controlled trials: a scoping review with a focus on multiple imputation. BMC Med Res Methodol. 2025 Sep 29;25(1):220. doi: 10.1186/s12874-025-02676-1. PMID: 41023636; PMCID: PMC12482435.

Fletcher GJ, Gnanamony M, Samuel P, Ismail AM, Kannangai R, Daniel D, Eapen CE, Abraham P. Association of mannose-binding lectin polymorphisms and HBV outcome in a South Indian population. Int J Immunogenet. 2010 Jun;37(3):177-84. doi: 10.1111/j.1744-313X.2010.00908.x. Epub 2010 Feb 24. PMID: 20193030.

Fletcher GJ, Samuel P, Christdas J, Gnanamony M, Ismail AM, Anantharam R, Eapen CE, Chacko MP, Daniel D, Kannangai R, Abraham P. Association of HLA and TNF polymorphisms with the outcome of HBV infection in the South Indian population. Genes Immun. 2011 Oct;12(7):552-8. doi: 10.1038/gene.2011.32. Epub 2011 May 19. PMID: 21593777.

Ismail AM, Sivakumar J, Anantharam R, Dayalan S, Samuel P, Fletcher GJ, Gnanamony M, Abraham P. Performance characteristics and comparison of Abbott and artus real-time systems for hepatitis B virus DNA quantification. J Clin Microbiol. 2011 Sep;49(9):3215-21. doi: 10.1128/JCM.00915-11. Epub 2011 Jul 27. PMID: 21795507; PMCID: PMC3165604.

Ismail AM, Samuel P, Eapen CE, Kannangai R, Abraham P. Antiviral resistance mutations and genotype-associated amino acid substitutions in treatment-naïve hepatitis B virus-infected individuals from the Indian subcontinent. Intervirology. 2012;55(1):36-44. doi: 10.1159/000323521. Epub 2011 Feb 11. PMID: 21311172.

Ismail AM, Samuel P, Ramachandran J, Eapen CE, Kannangai R, Abraham P. Lamivudine monotherapy in chronic hepatitis B patients from the Indian subcontinent: antiviral resistance mutations and predictive factors of treatment response. Mol Diagn Ther. 2014 Feb;18(1):63-71. doi: 10.1007/s40291-013-0054-3. PMID: 24030850.