TY  - RPRT
TI  - A prospective multipractice study based on antecedent data. Reduced selection and behaviour bias.
AU  - H T Sørensen
AU  - J F Møller-Petersen
AU  - P Felding
AU  - C Andreasen
AU  - J O Nielsen
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/1802632/
ID  - 1802632
ER  -