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Disputatio inauguralis medica de variolis et morbillis / quam ... pro summis in arte medica insignibus privilegiis & honoribus doctoralibus legitimè consequendis, eruditorum censurae submittit Hieronymus Zollicofferus, Sangallo-Helvetius. Die 23. Octobris M DC LXXXII. Public Domain Mark. Source: Wellcome Collection.