World Health Organization. (2012). Persisting pain in children: Important information for policy makers. World Health Organization.
Chicagoスタイル(17版)引用形式World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. Geneva, Switzerland: World Health Organization, 2012.
MLA(8版)引用形式World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. World Health Organization, 2012.
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