TY - GEN AU - Pottinger,J M AU - Herwaldt,L A AU - Perl,T M TI - Basics of surveillance--an overview SN - 0899-823X PY - 1997///0904 KW - Cross Infection KW - epidemiology KW - Hospitals KW - Humans KW - Infection Control KW - methods KW - Population Surveillance N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1086/647659 ER -