by Lal, B, Kapoor, A.K, Asthana, O.P, Agrawal, P.K, Prasad, R, Kumar, P, Srimal, R.C
Published in Phytotherapy research (01.06.1999)

by Lal, B., Kapoor, A. K., Agrawal, P. K., Asthana, O. P., Srimal, R. C.
Published in Phytotherapy research (01.09.2000)

by Mishra, S.K., Asthana, O.P., Mohanty, S., Patnaik, J.K., Das, B.S., Srivastava, J.S., Satpathy, S.K., Dash, S., Rath, P.K., Varghese, K.
Published in Transactions of the Royal Society of Tropical Medicine and Hygiene (01.05.1995)

by Lal, Jawahar, Asthana, Omkar P., Nityanand, Swaran, Gupta, Ram Chandra
Published in Contraception (Stoneham) (01.11.1995)

by SINGH, N, SHUKLA, M. M, ASTHANA, O. P, SHARMA, V. P
Published in Southeast Asian journal of tropical medicine and public health (01.06.1998)

by WAKHLU, A, GAUR, S. P. S, KAUSHAL, G. P, MISRA, Arvind, ASTHANA, O. P, SIRCAR, A. R
Published in Leprosy review (01.06.2001)

by Nagaraja, N.V., Singh, S.K., Paliwal, J.K., Ghatak, A., Asthana, O.P., Gupta, R.C.
Published in International journal of pharmaceutics (15.11.1998)

by Valecha, N, Gupta, S, Usha, D, Biswas, S, Sharma, A, Adak, T, Asthana, O P, Sharma, V P
Published in International journal of clinical pharmacology research (1997)

by Gupta, Ram Chandra, Paliwal, Jyoti Kumar, Nityanand, Swaran, Asthana, Omkar P., Lal, Jawahar
Published in Contraception (Stoneham) (01.11.1995)

by Paliwal, J K, Gupta, R C, Grover, P K, Asthana, O P, Srivastava, J S, NityaNand, S
Published in Pharmaceutical research (01.12.1989)

by Asthana, O P, Srivastava, J S, Das Gupta, P
Published in Journal of the Association of Physicians of India (01.04.2002)

by Nityanand, S, Srivastava, J S, Asthana, O P
Published in Journal of the Association of Physicians of India (01.05.1989)

by Agarwal, R C, Singh, S P, Saran, R K, Das, S K, Sinha, N, Asthana, O P, Gupta, P P, Nityanand, S, Dhawan, B N, Agarwal, S S
Published in Indian journal of medical research (New Delhi, India : 1994) (01.12.1986)

by Valecha, Neena, Adak, T., Bagga, A. K., Asthana, O. P., Srivastava, J. S., Joshi, Hema, Sharma, V. P.
Published in Current science (Bangalore) (25.02.2001)

by Raghav, Sangeeta, Singh, Harjeet, Dalal, P K, Srivastava, J S, Asthana, O P
Published in Indian journal of psychiatry (01.10.2006)

by Bhosale, Vivek V., Asthana, O. P., Gaur, S. P. S.
Published in Current science (Bangalore) (25.06.2013)

by Asthana, O P, Srivastava, J S, Pandey, T K, Vishwanathan, K A, Dev, V, Mahapatra, K M, Nayak, N C, Balsara, A B, Mandal, O P, Gupta, N, Mishra, S K, Mohanty, S, Sathpathy, S, Das, B S, Patnaik, J K, Sathpathy, S K, Dash, B
Published in Journal of the Association of Physicians of India (01.12.2001)

by Asthana, O P, Srivastava, J S, Kamboj, V P, Valecha, N, Sharma, V P, Gupta, S, Pande, T K, Vishwanathan, K A, Mahapatra, K M, Nayak, N C, Mahapatra, P K, Mahanta, J, Srivastava, V K, Vasdev, Singh, N, Shukla, M M, Balsara, A B, Mishra, S K, Satpathy, S K, Mohanty, S, Dash, B
Published in Journal of the Association of Physicians of India (01.07.2001)

by Lal, Jawahar, Nitynand, Swaran, Asthana, Omkar P., Nagaraja, Nelamangala V., Gupta, Ram C.
Published in Contraception (Stoneham) (2001)

by Pratap, R., Gupta, R. C., Chander, R., Khanna, A. K., Singh, Vinita, Kapoor, N. K., Srivastava, A. K., Raina, D., Singh, S., Ghatak, A., Asthana, O. P., Nityanand, S., Dev, Sukh, Anand, Nitya
Published in Current science (Bangalore) (10.05.2015)