TY - GEN AU - Parsonnet,J AU - Axon,A T TI - Principles of screening and surveillance SN - 0002-9270 PY - 1996///0702 KW - Ethics, Medical KW - Gastrointestinal Neoplasms KW - prevention & control KW - Humans KW - Mass Screening KW - Population Surveillance KW - Predictive Value of Tests KW - Sensitivity and Specificity N1 - Publication Type: Journal Article ER -