1. Algunas consideraciones sobre la exploracion intra-rectal: tésis inaugural que presenta ante el jurado calificador Author(s): Madriz, Luis G., author Publication: México : Imprenta de J.F. Jens, 1884 Subject(s): Rectal Diseases -- diagnosisDiagnostic Techniques, Digestive SystemMexico
2. Die neueren Methoden der Magenuntersuchung Author(s): Einhorn, Max, 1862-1953, author Publication: [New York?] : [publisher not identified], [1889?] Subject(s): Stomach Diseases -- diagnosisDiagnostic Techniques, Digestive System