TY  - RPRT
TI  - Comments on a pragmatic trial.
AU  - M Vray
AU  - D Schwartz
PY  - 1996
DO  - 10.1016/0895-4356(96)00047-9
UR  - https://pubmed.ncbi.nlm.nih.gov/8699219/
ID  - 8699219
ER  -