[Preservation of human lymphocytes in liquid nitrogen for the purpose of organ transplantation]

Repeated typing of organ receptors, indifferent of the technique employed, as well as the preparation of anti-sera of the HL-A type from multiple-pregnancy women (by repeated testing on known lymphocytes panels), suppose the storage for long periods of time of human lymphocytes at low temperatures. The authors present a technique adapted for the storage of lymphocytes in liquid nitrogen allowing for the survival of these cells, in very satisfactory conditions, for long periods of time.