Zimmer, Margaret Mary2016-08-052016-08-0519411941b147245227866889https://hdl.handle.net/2144/17409Thesis (M.S.)--Boston University, 1941. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsSome socially significant factors in the incidence of mental deficiency among patients admitted to the Danvers State Hospital between October 1, 1938 and September 30, 1940Thesis/Dissertation