TY  - RPRT
TI  - [Constipation -- current views on diagnostic procedures and therapy].
AU  - R-M Liehr
PY  - 2004
DO  - 10.1055/s-2004-831380
UR  - https://pubmed.ncbi.nlm.nih.gov/15368177/
ID  - 15368177
ER  -