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Citation: Aj. Copas et Vt. Farewell, DEALING WITH NON-IGNORABLE NONRESPONSE BY USING AN ENTHUSIASM-TO-RESPOND VARIABLE, Journal of the Royal Statistical Society. Series A. Statistics in society, 161, 1998, pp. 385-396

Authors: SADIQ ST COPAS AJ JOHNSON AM

Citation: St. Sadiq et al., FACTORS ASSOCIATED WITH GONORRHEA IN MEN AWARE OF BEING POSITIVE FOR HIV-INFECTION - CASE-CONTROL STUDY, BMJ. British medical journal, 317(7165), 1998, pp. 1052-1053

Authors: COPAS AJ JOHNSON AM WADSWORTH J

Citation: Aj. Copas et al., ASSESSING PARTICIPATION BIAS IN A SEXUAL-BEHAVIOR SURVEY - IMPLICATIONS FOR MEASURING HIV RISK, AIDS, 11(6), 1997, pp. 783-790