TY - GEN AU - Chen,R TI - Detection and investigation of subtle epidemics SN - 0361-7742 PY - 1985///0523 KW - Abnormalities, Drug-Induced KW - epidemiology KW - Disease Outbreaks KW - Environmental Exposure KW - Female KW - Humans KW - Infant, Newborn KW - Male KW - Pregnancy KW - Space-Time Clustering KW - Statistics as Topic KW - Teratogens N1 - Publication Type: Journal Article ER -