To test her idea that extended post partum connection to the placenta is good for a child's health, Dr Andersson and her colleagues recruited 334 pregnant, non-smoking women whose fetuses appeared to be healthy.

为了证实延长产后胎儿与胎盘的连接时间确实有益于儿童的健康，Andersson博士和她的同事们招募了334个没有吸烟习惯的孕妇志愿者，她们肚中的胎儿看起来都很健康。