An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Burleigh DW, Williams RF, Gordon K, Hsiu JG, Hodgen GD.Burleigh DW, et al. Among authors: williams rf.Contraception. 1998 Jul;58(1):45-50. doi: 10.1016/s0010-7824(98)00060-2.Contraception. 1998.PMID: 9743896
Gordon K, Williams RF, Danforth DR, Veldhuis JD, Hodgen GD.Gordon K, et al. Among authors: williams rf.Contraception. 1992 Apr;45(4):369-78. doi: 10.1016/0010-7824(92)90059-3.Contraception. 1992.PMID: 1516369
Edelstein MC, Gordon K, Williams RF, Danforth DR, Winters SJ, Hodgen GD.Edelstein MC, et al. Among authors: williams rf.Contraception. 1992 Feb;45(2):155-66. doi: 10.1016/0010-7824(92)90049-y.Contraception. 1992.PMID: 1559337
Edelstein MC, Gordon K, Williams RF, Danforth DR, Hodgen GD.Edelstein MC, et al. Among authors: williams rf.Contraception. 1990 Aug;42(2):209-14. doi: 10.1016/0010-7824(90)90104-4.Contraception. 1990.PMID: 2085971
Leal JA, Gordon K, Williams RF, Danforth DR, Roh SI, Hodgen GD.Leal JA, et al. Among authors: williams rf.Contraception. 1989 Nov;40(5):623-33. doi: 10.1016/0010-7824(89)90134-0.Contraception. 1989.PMID: 2515029
Heikinheimo O, Gordon K, Lähteenmäki P, Williams RF, Hodgen GD.Heikinheimo O, et al. Among authors: williams rf.J Clin Endocrinol Metab. 1995 Jun;80(6):1859-68. doi: 10.1210/jcem.80.6.7775633.J Clin Endocrinol Metab. 1995.PMID: 7775633
Gordon K, Aso T, Williams RF.Gordon K, et al. Among authors: williams rf.Contraception. 1995 Apr;51(4):265-72. doi: 10.1016/0010-7824(95)00044-b.Contraception. 1995.PMID: 7796594