Bruce Ettinger1, Debra Black, Bruce Mitlak, Ronald K. Knickerbocker, Thomas Nickelsen, Harry K. Genant, C. Christiansen, P.D. Delmas, José Zanchetta, J. A. Stakkestad, Claus‐Christian Glüer, K Krueger, Fredric J. Cohen, Stephen Eckert, Kristine E. Ensrud, Louis V. Avioli, Paul Lips, S. R. Cummings
1Division of Research, Kaiser Permanente, Oakland, Calif 94611-5400, USA. [email protected]