TY  - RPRT
TI  - [Problems with studies of open versus laparoscopic appendectomy].
AU  - L Krähenbühl
AU  - M Büchler
PY  - 1997
DO  - 10.1007/s001040050146
UR  - https://pubmed.ncbi.nlm.nih.gov/9132345/
ID  - 9132345
ER  -