TY  - RPRT
TI  - Constipation: definition and classification.
AU  - J M Hinton
AU  - J E Lennard-Jones
PY  - 1968
DO  - 10.1136/pgmj.44.515.720
UR  - https://pubmed.ncbi.nlm.nih.gov/5705375/
ID  - 5705375
ER  -