Comment on

• Randomised controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contraceptives for emergency contraception. Task Force on Postovulatory Methods of Fertility Regulation.

  [No authors listed] [No authors listed] Lancet. 1998 Aug 8;352(9126):428-33. Lancet. 1998. PMID: 9708750 Clinical Trial.
• Emergency contraception: WHO Task Force study.

  Trussell J. Trussell J. Lancet. 1998 Oct 10;352(9135):1222-3. doi: 10.1016/S0140-6736(05)60561-2. Lancet. 1998. PMID: 9777862 No abstract available.
• Emergency contraception.

  Ellertson C, Blanchard K, Webb A, Bigrigg A, Haskell S. Ellertson C, et al. Lancet. 1998 Oct 31;352(9138):1477. doi: 10.1016/S0140-6736(05)61309-8. Lancet. 1998. PMID: 9808025 No abstract available.