van der Valk Jan, Dewhurst David, Hughes Ian, Atkinson Jeffrey, Balcombe Jonathan, Braun Hans, Gabrielson Karin, Gruber Franz, Miles Jeremy, Nab Jan, Nardi Jason, van Wilgenburg Henk, Zinko Ursula, Zurlo Joanne
Altern Lab Anim. 1999 Jan-Feb;27(1):39-52. doi: 10.1177/026119299902700105.