Effecten van voorlichting ter voorkoming van sexueel overdraagbare aandoening...

Evaluation of the influence of information in prevention of sexually transmittable diseases on knowledge and behaviour. several background variables / importance of God and...性传播疾病（Sexually Transmittable Diseases）预防相关信息对认知与行为的影响评估，涉及多项背景变量、对上帝的重视程度及……