[1] CENT INST BREEDING LAB ANIM, ZEIST, NETHERLANDS
[2] BLUE SPRUCE FARMS INC, ALTAMONT, NY USA
[3] UNIV ROCHESTER, ROCHESTER, NY 14627 USA
[4] DARTMOUTH COLL, HITCHCOCK MED CTR,DARTMOUTH MED SCH, HANOVER, NH 03755 USA
[5] UNIV OXFORD, OXFORD, ENGLAND
[6] HOP NECKER, F-75730 PARIS 15, FRANCE
[7] UNIV COLORADO, DENVER, CO 80202 USA
[8] UNIV ALABAMA, BIRMINGHAM, AL 35294 USA
[9] UNIV BRISTOL, BRISTOL BS8 1TH, AVON, ENGLAND
[10] VET ADM MED CTR, PORTLAND, OR 97201 USA
[11] CZECHOSLOVAK ACAD SCI, CS-11142 PRAGUE 1, CZECHOSLOVAKIA
[12] FAC MED NANCY, F-54019 NANCY, FRANCE