TY - GEN AU - Mohandas,K M TI - Problems with epidemiologic studies on Helicobacter pylori in India SN - 0254-8860 PY - 1998///0304 KW - Adolescent KW - Adult KW - Case-Control Studies KW - Child KW - Child, Preschool KW - Cross-Sectional Studies KW - Female KW - Helicobacter Infections KW - epidemiology KW - Helicobacter pylori KW - Humans KW - India KW - Infant KW - Male KW - Middle Aged KW - Research Design KW - Selection Bias N1 - Publication Type: Journal Article ER -