In copyright
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Credit
La llave del éxito en la terapéutica del dolor, la inflamación, la fiebre y el reumatismo, Neomelubrina : Un nuevo concepto en la terapéutica de las enfermedades bacterianas ... Omnacina ... Omnacilina / Hoechst A.G. ; representantes: Farmaceutica Hoechst Mexicana, S.A. In copyright. Source: Wellcome Collection.