1. Memorandum from Kenneth P. Liroff to Adrian Kantrowitz [on pacemaker study] Creator: Liroff, Kenneth P.Maimonides Hospital of Brooklyn Date: 30 June 1966 Genre: Memorandums
2. Memorandum from Fred Grubel to N. Herskovits [on pacemaker fund] Creator: Maimonides Hospital of BrooklynGrubel, Fred Date: 12 December 1961 Genre: Memorandums
3. Memorandum from Fred Grubel to N. Herskovits [on pacemaker fund] Creator: Maimonides Hospital of BrooklynGrubel, Fred Date: 5 March 1962 Genre: Memorandums
4. Memorandum from Fred Grubel to I. Langer [on purchase of pacemaker for indigent patients] Creator: Maimonides Hospital of BrooklynGrubel, Fred Date: 29 November 1961 Genre: Memorandums
5. Memorandum from David Grob to Fred Grubel [on purchase of internal pacemakers for implantation in patients] Creator: Maimonides Hospital of BrooklynGrob, David Date: 16 January 1962 Genre: Memorandums
6. Memorandum from Adrian Kantrowitz to Fred Grubel Creator: Kantrowitz, Adrian Date: 13 March 1962 Genre: Memorandums
7. Letter from W. H. Duehren to Adrian Kantrowitz Creator: General Electric CompanyDuehren, W. H. Date: July 1966 Genre: Letters (correspondence)