File consists of 11 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically. File also includes 12 pages of handwritten bibliographic references.

File consists of 11 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 60 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 35 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 40 letters, including outgoing letters from Abbott and incoming letters from correspondents, as well as some notes. Letters are arranged alphabetically.

File consists of approximately 12 letters, including outgoing letters from Abbott and incoming letters from correspondents. Some are accompanied by electrocardiograms. Letters are arranged alphabetically.

File consists of approximately 4 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 20 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 3 letters, including outgoing letters from Abbott and incoming letters from correspondents. Letters are arranged alphabetically.

File consists of approximately 30 letters, including outgoing letters from Abbott and incoming letters from correspondents. Also included are notes and autopsy reports. Letters are arranged alphabetically.