BerenblumIsaac: The Weizmann Institute of Science, Rehovoth (Israele)
7.
BergelF.: Chester Beatty Research Institute, Fulham Road, London S.W.3 (Inghilterra)
8.
BoylandEric: Chester Beatty Research Institute, Fulham Road, London S.W.3 (Inghilterra)
9.
ButlerJ.A.V.: Chester Beatty Research Institute, Fulham Road, London S.W.3 (Inghilterra)
10.
ClemmesenJohannes: Danish Cancer Registry, Strandboulevarden 49, Copenhagen (Danimarca)
11.
CoulsonC. A.: Mathematical Institute, University of Oxford, 10 Park Road, Oxford (Inghilterra)
12.
Cowdry, EdmundV.: Washington University, School of Medicine, St. Louis 10, Mo. (U.S.A.)
13.
CraigieJames: Imperial Cancer Research Fund, Burtonhole Lane, Mill Hill, London N.W.7 (Inghilterra) Dargent, Marcel: Centre Léon Bérard, 26 rue Laennec, Lyon (Francia) Denk, W.: Oesterreichisches Krebsforchunsinstitut, Corschkegasse 8 a, Wien IX (Austria)
14.
DenoixP. F.: Institut Gustave Roussy, Villejuif, Seine (Francia)
15.
DmochowskiLeon: M. D. Anderson Hospital, Houston, Texas (U.S.A.)
16.
DollRichard: London School of Hygiene & Tropical Medicine, Keppel Street, London W.C.l. (Inghilterra)
17.
DruckreyHermann: Chirurgische Universitätsklinik, Hugstetterstrasse 55, Freiburg i. Br. (Germania)
18.
DunnThelma B.: National Cancer Institute, Bethesda 14, Md. (U.S.A.)
19.
FarberSidney: The Children Cancer Research Foundation, 35 Binney Street, Boston 15, Mass. (U.S.A.)
20.
GaltonDavid A. G.: Chester Beatty Research Institute, Fulham Road, London S.W.3 (Inghilterra)
21.
GardrneWilliam U.: Yale University, School of Medicine, 333 Cedar Street, New Haven 11, Conn. (U.S.A.)
22.
GellhomAlfred: College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York 32, N.Y. (U.S.A.)
23.
ShubikPhilippe: The Chicago Medical School, 2020 West Ogden Avenue, Chicago 12, Ill. (U.S.A.)
24.
SmithersD. W.: Chester Beatty Research Institute, Fulham Road, London S.W.3 (Inghilterra)
25.
StewartHarold L.: National Cancer Institute, Bethesda 14, Md. (U.S.A.)
26.
StockC.Chester: Sloan-Kettering Institute, 410 East 68th Street, New York 21, N.Y. (U.S.A.)
27.
TannenbaumAlbert: Michael Reese Hospital, Chicago 16, Ill. (U.S.A.)
28.
WeinhouseSidney: Institute for Cancer Research, 7701 Burholme Avenue, Philadelphia 11, Pa. (U.S.A.)
29.
WinzlerRichard J.: Department of Biological Chemistry, University of Illinois, College of Medicine, Chicago 12, Ill. (U.S.A.)