Aralen, un solido paso en la defensa contra el paludismo : Del exorcismo mágico a la química moderna... una preocupación perenne: suprimir el dolor : Demerol / Winthrop.

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Credit

Aralen, un solido paso en la defensa contra el paludismo : Del exorcismo mágico a la química moderna... una preocupación perenne: suprimir el dolor : Demerol / Winthrop. In copyright. Source: Wellcome Collection.