TY  - RPRT
TI  - [Yield from active case finding in high risk groups].
AU  - R B Spanjaard
AU  - D C Bekkers
AU  - H A Van Geuns
AU  - K Styblo
PY  - 1978
UR  - https://pubmed.ncbi.nlm.nih.gov/756307/
ID  - 756307
ER  -