TY - JOUR T1 - A Short History of Primary Care Practice-based Research Networks: From Concept to Essential Research Laboratories JF - The Journal of the American Board of Family Medicine JO - J Am Board Fam Med SP - 1 LP - 10 DO - 10.3122/jabfm.19.1.1 VL - 19 IS - 1 AU - Larry A. Green AU - John Hickner Y1 - 2006/01/01 UR - http://www.jabfm.org/content/19/1/1.abstract N2 - ER -