@misc{indiciaeb5f0bb33e59b, title = {What patient population does visit-based sampling in primary care settings represent?}, author = {Martin L Lee and Elizabeth M Yano and MingMing Wang and Barbara F Simon and Lisa V Rubenstein}, year = {2002}, doi = {10.1097/00005650-200209000-00006}, url = {https://pubmed.ncbi.nlm.nih.gov/12218767/}, note = {Source identifier: 12218767} }