PT - JOURNAL ARTICLE AU - Green, Larry TI - UPDATE ON THE P<sup>4</sup> PROJECT AID - 10.1370/afm.808 DP - 2008 Jan 01 TA - The Annals of Family Medicine PG - 86--86 VI - 6 IP - 1 4099 - http://www.annfammed.org/content/6/1/86.1.short 4100 - http://www.annfammed.org/content/6/1/86.1.full SO - Ann Fam Med2008 Jan 01; 6