Ward Mitchell Cates

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Intensive research efforts for more than two decades have not yet resulted in an HIV vaccine of even moderate effectiveness. However, some progress has been made with other biomedical interventions, albeit on the basis of inconsistent levels of evidence. The male condom, if used correctly and consistently, has been proven in observational studies to be very(More)
Sexually transmitted and other reproductive tract infections. The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the(More)
Cervical injury is one of the most frequent complications of suction curettage abortion, yet little is known about its risk factors or prevention. In 15 438 suction curettage abortions carried out at less than or equal to 12 weeks' gestation in hospitals in the USA from 1975 to 1978 the incidence of cervical injury requiring suturing was 1.03 per 100(More)
Determining learner metacognitive sufficiency and identifying appropriate strategies for helping learners depends first upon knowing the types of monitoring skills learners use and then in being able to identify from learner behaviors when they are having metacognitive difficulties. While hypermedia/multimedia learning products offer promise for helping(More)
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