Quaestiones saepius motae super methodo inoculandi variolas, ad quas directa eruditorum responsa hucusque desiderantur; indirecta minus satisfacere videntur: orbi medico denuo propositae / [Anton de Haën].

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Quaestiones saepius motae super methodo inoculandi variolas, ad quas directa eruditorum responsa hucusque desiderantur; indirecta minus satisfacere videntur: orbi medico denuo propositae / [Anton de Haën]. Public Domain Mark. Source: Wellcome Collection.