Von Pettenkofer, Max Cholera: How to Prevent and Resist It Pettenkofer, Max von Outbreak Of Cholera Among Convicts: An Etiological Study Of The Influence Of Dwelling, Food, Drinking-water, Occupation, Age, State Of Health, And ... Living In Precisely The Same Circumstances Pettenkofer, Max von Untersuchungen und Beobachtungen über die Verbreitungsart der Cholera