TY  - RPRT
TI  - Invitation to a population-based cohort study: differences between subjects recruited using various strategies.
AU  - Jonas Manjer
AU  - Sölve Elmståhl
AU  - Lars Janzon
AU  - Göran Berglund
PY  - 2002
DO  - 10.1177/14034948020300020401
UR  - https://pubmed.ncbi.nlm.nih.gov/12028859/
ID  - 12028859
ER  -