1. Memorandum from Fred Grubel to I. Langer [on purchase of pacemaker for indigent patients]

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2. Memorandum from Fred Grubel to N. Herskovits [on pacemaker fund]

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3. Memorandum from David Grob to Fred Grubel [on purchase of internal pacemakers for implantation in patients]

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4. Memorandum from Fred Grubel to N. Herskovits [on pacemaker fund]

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5. Memorandum from Adrian Kantrowitz to Fred Grubel

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6. Letter from Adrian Kantrowitz to Jack A. Cannon

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7. Letter from Nelson H. Kraeft to Adrian Kantrowitz

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8. Letter from Adrian Kantrowitz to Nelson H. Kraeft

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9. Letter from Timothy Takaro to Adrian Kantrowitz

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10. The Treatment of Complete Heart Block with an Implanted, Controllable Pacemaker

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