BJOG : an international journal of obstetrics and gynaecology
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To examine the epidemiological and economic impact of a nine-valent (nonavalent) human papillomavirus (HPV) 6/11/16/18/31/33/45/52/58 vaccine programme for young teenagers in Singapore. ⋯ Nonavalent HPV vaccination of 11- to 12-year-old girls is cost-effective in Singapore.