ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE ESTIMATION OF DILTIAZEM HYDROCHLORIDE IN BULK AND PHARMACEUTICAL DOSAGE FORM BY RP- HPLC Journal title: International Journal of Drug Regulatory Affairs Authors: Bhagyashree R. Patil, Bhusnure O.G., Paul B. N., Ghodke A. Y., Suraj S. Mulaje Subject(s): Medicine, Internal Medicine, Pharmacology, Pharmacy, Toxicology, Health and Wellness