1. Kaiser Permanente Southern California, Pasadena, California (S.Y.T., L.Q., V.H., R.W., H.F., Z.L., S.F.S., S.L.C., C.L.N.)
2. Kaiser Permanente Southern California Clinical Informatics, Pasadena, California (R.F.N.)
3. Southern California Permanente Medical Group, Anaheim, California (T.S.)
4. Southern California Permanente Medical Group, Harbor City, California (G.K.R., B.K.A.)
5. Kaiser Permanente Southern California, Pasadena, California, and Southern California Permanente Medical Group, Los Angeles, California (A.L.S.)
6. The Permanente Medical Group, Oakland, California (J.S.)
7. Southern California Permanente Medical Group, Ontario, California (T.K.N.)
8. Southern California Permanente Medical Group, Fontana, California (S.B.M.)