TY  - RPRT
TI  - [Attempted suicide in Mannheim. Ecological multiple-level comparison].
AU  - R Welz
AU  - J Klug
AU  - H Häfner
AU  - E R Rey
PY  - 1978
UR  - https://pubmed.ncbi.nlm.nih.gov/642960/
ID  - 642960
ER  -