1. Pneumocography as an aid in the diagnosis of gynecologic disease;Abrams;Amer. J. Obstet. Gynec,1955
2. The radiographic study of the abdominal organs after inflation of the peritoneal cavity;Alvarez;Calif. Med,1920
3. A cartridge-loaded gas syringe;Bilbao;Amer. J. Roentgen,1967
4. Abdominal and pelvic pneumography;Buice;Radiology,1957
5. La pneumopelvigrafia nella diagnosi dei tumori ginecologici;Carnevali,1957