The HMO research network

Authors: Chan KA; Davis RL; Gunter MJ; Gurwitz JH; Herrinton LJ; Nelson WW; Raebel MA; Roblin DW; Smith DH; Platt R

In: Strom BL, editor. Pharmacoepidemiology, fourth edition. Chichester (UK): John Wiley & Sons; 2005.