Patel, I. .; Ghandhi, R.; Shah, A. .; Bhatt, M. .; Suthar, A. . COMPARATIVE STUDY OF BUPIVACAINE VS BUPIVACAINE AND KETAMINE (INTRATHECALLY) DURING INTRAOPERATIVE AND POST OPERATIVE ANALGESIA IN NON PIH CAESARIAN SECTION. Natl J Med Res 2011, 1, 71-75.