TY - BOOK AU - Goel Neeraj AU - Dr B L Sherwal Supervisor AU - University of Delhi. Faculty of Medical Sciences. Department of Medical Microbiology ED - University of Delhi. Faculty of Medical Sciences. Department of Medical Microbiology TI - Comparison of invasive and non invasive tests to diagnose helicobacter pylori infection PY - 1999/// KW - MIRCOBIOLOGY ER -