Sexual Health questions included in the Health Behaviour in School-aged Children (HBSC) Study: an international methodological pilot investigation
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E. Saewyc | S. N. Gabhainn | E. Godeau | N. Moreau | András Költő | A. Cosma | M. Reis | H. Young | Lorraine Burke | B. Windlin | S. Gabhainn | A. Költő