Well, it turns out that those cells used in that laboratory, they're male cells, and the animals used in the animal studies were male animals, and the clinical trials have been performed almost exclusively on men.
事实证明，被实验室用于测试的细胞， 都是雄性细胞。 动物研究时所用的也是雄性动物， 而临床试验则几乎完全是针对男性的。