“Free Levonorgestrel Index” (FLI) is a better parameter than plasma level of levonorgestrel for predicting risk of pregnancy during use of subdermal contraceptive implants releasing levonorgestrel

• 作者Sven-Eric Olsson; Viveca Odlind
• 卷第52卷
• 期第4期
• 印刷ISSN0039-128X
• 文件大小118.75KB
• 发表时间1988
• DOI10.1016/0039-128x(88)90170-5