TY  - RPRT
TI  - Group practice; what needs to be done.
AU  - J S COLLINGS
PY  - 1953
DO  - 10.1016/s0140-6736(53)90342-0
UR  - https://pubmed.ncbi.nlm.nih.gov/13098017/
ID  - 13098017
ER  -