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Credit
O naiboliee udobnykh sposobakh dobyvaniia khlora dlia dezinfektsii : materialy dlia voprosa o dezinfektsii : dissertatsiia na stepen' doktora meditsiny / Liudviga Vecherkevicha ; tsenzorami dissertatsii po porucheniiu Konferentsii byli professory A.A. Lesh, A.P. Dobroslavin i A.P. Dianin. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.