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BMC Public Health > 2018 > 18 > 1 > 1-9
Journal of Pediatric and Adolescent Gynecology > 2016 > 29 > 5 > 429-435
Monatsschrift Kinderheilkunde > 2012 > 160 > 5 > 477-483
BMC Public Health > 2018 > 18 > 1 > 1-9
Journal of Pediatric and Adolescent Gynecology > 2016 > 29 > 5 > 429-435
Monatsschrift Kinderheilkunde > 2012 > 160 > 5 > 477-483