Euzebus C. Ezugwu , Peter O. Nkwo, Polycap U. Agu, Emmanuel O. Ugwu, Augustine O. Asogwa. Contraceptive use among HIV-positive women in Enugu, southeast Nigeria. International Journal of Gynecology and Obstetrics 126 (2014) 14–17 http://www.ijgo.org/article/S0020-7292(14)00127-1/pdf

 Nkwo PO, Chigbu CO, Nweze S, Okoro OS, Ajah LO. Presence of chaperones during pelvic examinations in southeast Nigeria: Women's opinions, attitude, and preferences. Niger J Clin Pract 2013;16:458-61. http://www.ajol.info/index.php/njcp/article/view/94230

 Obinna D. Onodugo, Chinwe Chukwuka, Cajetan Onyedum, Emmanuel Ejim, Anthony Mbah, Peter Nkwo,George Ugwu, Ubani Ukoma, Chinyere Okafor, Chukwujekwu Anyene, Emmanuel Nwabueze, Frank Obi, Jude Akabueze, Ikenna Uche, Fintan Ekochin, Edith Nnoruka. Baseline Renal Function among Antiretroviral Therapy-Naive, HIV-Infected Patients in South East Nigeria Journal of the International Association of Providers of AIDS Care (JIAPAC);2013,  2325957413488169 http://jia.sagepub.com/content/early/2013/06/14/2325957413488169.full.pdf+html

Ajah LO, Eze MI, Dim CC, Ezegwui HU, Nkwo PO, Eluke CC, Okoro OS, Dinwoke V.Placenta percreta in a booked multiparous woman with minimal risk factors and challenges of management in a low resource setting. Niger J Med. 2012; 21(3):359-60. http://europepmc.org/abstract/med/23304938

Nkwo, Onubiwe Peter, Chigbu,  Chibuike Ogwuegbu, Ajah, Ogbonna Leonard, Okoro, Silas Onyemaechi. The Perception and Practice of Chaperones by Nigerian Gynecologists. International Journal of Gynecology and Obstetrics. 2012. http://www.ijgo.org/article/S0020-7292(12)00466-3/pdf

 Peter O Nkwo. Reverse marsupialization technique of defibulation to restore vulvo-perineal elasticity: a case report and description of technique. Trop Doct. 2012; 42:147-149. http://tdo.sagepub.com/content/42/3/147.short