1. Sigmoidoscopy, A New Surgical Position and Apparatus for Attaining and Maintaining It;Blair;Surg., Gynec. & Obst.,1953
2. Diagnostico radiológico, El neumorriñón;Ruiz;Técnica original. Arch. espan. urol.,1948
3. Roentgenological diagnosis: Generalized subserous emphysema through a single puncture;Ruiz;Am. J. Roentgenol.,1950
4. Pneumoperitoneum and pneumoretroperitoneum;Leucutia;Am. J. Roentgenol.,1952