Noctinal butabarbital sodico Frosst : hipnotico inofensivo de acción rapida y sedativa : intensificador de los analgesicos, sin efectos secundarios / Charles E. Frosst & Co. ; representantes para Cuba: Distribuidora Cubana.

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Noctinal butabarbital sodico Frosst : hipnotico inofensivo de acción rapida y sedativa : intensificador de los analgesicos, sin efectos secundarios / Charles E. Frosst & Co. ; representantes para Cuba: Distribuidora Cubana. In copyright. Source: Wellcome Collection.