Woo Yun Sohn

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CONTEXT While a number of studies have examined the association between individuals' characteristics and their contraceptive use, few studies have examined the influence of partners' characteristics on individuals' contraceptive use. METHODS Using nationally representative data from the National Longitudinal Study of Adolescent Health, multiple logistic(More)
Haemophilus influenzae frequently colonizes the nasopharynx of children and adults, which can lead to a variety of infections. We investigated H. influenzae carriage in the nasopharynx of 360 children, in terms of (1) the prevalence of strains with decreased susceptibility, and (2) the presence of amino acid substitutions in PBP3. One hundred twenty-three(More)
Intraocular (IO) retinoblastoma (RB) has traditionally been treated with enucleation (ENU) or external beam radiotherapy (EBRT). Recently, clinical trials are in progress to cure RB without ENU or EBRT in order to salvage the globe and to avoid unacceptable side effects of EBRT. We performed a pilot study to treat patients with advanced Reese-Ellsworth (RE)(More)
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INTRODUCTION Cervical cancer is the tenth most common cancer and the eighth most frequent cause of death among women in Singapore. Human papillomavirus (HPV) infection is the necessary cause of cervical cancer and therefore the risk of cervical cancer can be substantially reduced through vaccination. This study was conducted to evaluate the(More)
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