TY  - RPRT
TI  - Variations in practice patterns.
AU  - M Renwick
AU  - S Sax
PY  - 1991
DO  - 10.5694/j.1326-5377.1991.tb101306.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1921780/
ID  - 1921780
ER  -