健康男性
健康男性
一个是文档管理员,艾伦,一个无亲无故的健康小伙子。
METHODS: This is an open randomized, three-period crossover study in 18 healthy male volunteers.方法:18名男性健康受试者采用随机分组自身交叉对照实验方法。
Methods 8 healthy male gerbils were used and experiments were carried out after 1 week of observation and quarantine.方法8只实验动物用健康雄性沙土鼠经观察和检疫1周后进行实验。