TY - GEN AU - Fraser,G E TI - The estimation of disease frequency using a population sample SN - 0300-5771 PY - 1979///0226 KW - Humans KW - Morbidity KW - Population Surveillance KW - Sampling Studies N1 - Publication Type: Journal Article UR - https://doi.org/10.1093/ije/7.3.277 ER -