By Siegel, Jacob S., Olshansky, S. Jay
By Cheng, Sheung-Tak, Chi, Iris, Fung, Helene H., Li, Lydia W., Woo, Jean
By Bengtsson, Tommy
By Attané, Isabelle, Gu, Baochang
By Barbi, Elisabetta, Bongaarts, John, Vaupel, James W.
By Maier, Heiner, Gampe, Jutta, Jeune, Bernard, Vaupel, James W., Robine, Jean-Marie
By Baudisch, Annette
By Uhlenberg, Peter
By Véron, Jacques, Pennec, Sophie, Légaré
By Light, Alison
By Dodd, Celia
By Hertoghe, Dr. Thierry, Sears, Barry
By Tricia Williams, David Winter and Lin Ball
By Chambers, Clare
By Aleman, Andre, Mills, Annette
By Ferrin, Kelly
By Irma Kurtz
By Freedman, Marc
By Smedley, Keren
By John Lane
By Rantzen, Esther
By Dychtwald Ph.D., Ken
By Ironside, Virginia
By Dr Ronald Klatz, Dr Robert Goldman
By Roszak, Theodore
By Roizen, Michael F., Oz, Mehmet C.
By Duke, James A., Castleman, Michael
By Neuberger, Julia
By Gillies, Andrea
By Sheehy, Gail