Lua APA (7ú heag.)

Não informado. (2018). Pain. International Association for the Study of Pain.

Lua i Stíl Chicago (17ú heag.)

Não informado. Pain. Seattle, Wash: International Association for the Study of Pain, 2018.

Lua MLA (8ú heag.)

Não informado. Pain. International Association for the Study of Pain, 2018.

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