Nath, IReddy, KSDinshaw, KABhisey, ANKrishnaswami, KBhan, MKGanguly, NKKaur, SPanda, SKJameel, SSrinivasan, KThankappan, KRValiathan, MS2015-07-292015-07-291998Lancet. 351;9111;1265-75.http://www.ncbi.nlm.nih.gov/pubmed/9643763https://dspace.sctimst.ac.in/handle/123456789/2610Public Health