TY  - RPRT
TI  - Constipation happens.
AU  - H W Vaillant
PY  - 1997
DO  - 10.1046/j.1525-1497.1997.1217102.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9034951/
ID  - 9034951
ER  -