TY - JOUR KW - Graft Rejection KW - Humans KW - Hypersensitivity, Delayed KW - Immunity, Cellular KW - Immunity, Maternally-Acquired KW - Immunization, Passive KW - Immunogenetics KW - Lepromin KW - leprosy KW - Leukocytes KW - Molecular Weight KW - T-Lymphocytes KW - Time Factors KW - Transplantation Immunology KW - Transplantation, Homologous BT - Lancet (London, England) C1 - http://www.ncbi.nlm.nih.gov/pubmed/4123626?dopt=Abstract DA - 1973 Jul 14 IS - 7820 J2 - Lancet LA - eng PY - 1973 SP - 79 EP - 80 T2 - Lancet (London, England) TI - Transfer factor. VL - 2 SN - 0140-6736 ER -