by Khurana, A.K., Lal, Harbans, Chauhan, B.S., Parmar, I.P.S., Saini, A.S.
Published in Experimental eye research (01.08.1982)

by Parmar, I P, Chandra, P, Kumar, J, Nagpal, R C
Published in Indian journal of ophthalmology (01.09.1973)

by Chohan, B S, Parmar, I P, Bhatia, J N
Published in American journal of ophthalmology (01.07.1969)