Gould M N, Clifton K H, Crowley J
J Natl Cancer Inst. 1978 Feb;60(2):469-71. doi: 10.1093/jnci/60.2.469.
Groups of female Fischer rats received 500 rads of gamma-irradiation and were maintained in hormone states that promoted or inhibited lactation. Chronically lactating rats developed no mammary tumors. Rats did not lactate or lactated acutely during the period surrounding irradiation developed similar numbers of carcinomas.
将雌性Fischer大鼠分组,给予500拉德的γ射线照射,并维持在促进或抑制泌乳的激素状态。长期泌乳的大鼠未发生乳腺肿瘤。在照射前后未泌乳或急性泌乳的大鼠发生癌的数量相似。