Gupta A. K. Handbook of clinical trials in ophthalmology / A. K. Gupta, Vinod Kumar Aggarwal, Neha Goel ; foreword Barun Kumar Nayak. - New Delhi : Jaypee Brothers Medical Pub., 2014. - xx, 314 p. ; 24 cm. ISBN: 9789350907740 RM126.54 Subjects--Topical Terms: Eye Diseases--therapy.Clinical trials.