Kostrzewski, J [Studies on the reservoir of the typhus fever during the non-epidemic period in Poland]. [electronic resource] - Polski tygodnik lekarski (Warsaw, Poland : 1960) Oct 1966 - 1553-6 p. digital Publication Type: Journal Article ISSN: 0032-3756 Subjects--Topical Terms: Disease ReservoirsHumansPolandTyphus, Epidemic Louse-Borne--epidemiology