The Northern Medical Association of Philadelphia. Centennial vol. Ed. by Maurice S. Jacobs. - [Philadelphia] 1946. - 143 p. ill., ports. Errata slip mounted on p. [2] LCCN: med47003120 LC Class. No.: R15.N948 / N6 National Library of Medicine Call No.: WB 1 / AP4 P5N8n 1946