TY  - RPRT
TI  - What patient population does visit-based sampling in primary care settings represent?
AU  - Martin L Lee
AU  - Elizabeth M Yano
AU  - MingMing Wang
AU  - Barbara F Simon
AU  - Lisa V Rubenstein
PY  - 2002
DO  - 10.1097/00005650-200209000-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/12218767/
ID  - 12218767
ER  -