R. Sharma

Estimation of 24 hour protein excretion from single random urine specimen.

O. P. Kalra, J. Chopra, V. Singh, 1990, The Indian journal of medical research.

Aluminium phosphide poisoning: a prospective study of 16 cases in one year.

O. P. Kalra, J. Chopra, A. Chandna, 1986, Postgraduate medical journal.