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. An improved self-retaining rectal and vaginal speculum Author(s): Erich, Aug. F. (Augustus Frederick), 1837-1886, author Publication: Cincinnati : The Cincinnati Lancet Press Print, 1881 Subject(s): Surgical InstrumentsGynecological ExaminationGenital Diseases, Female -- surgeryRectal Diseases -- surgeryRectal Diseases -- diagnosis