1. Mucosal folds at the cardia as a component of the gastro-oesophageal closing mechanism;Botha;Brit. J. Surg.,1958
2. Topographical Anatomy of the Dog;Bradley,1927
3. A study of the cardia in unanesthetized dogs;Burget,1936
4. Esophageal motility after vagotomy, phrenicotomy, myotomy and myomectomy in dogs;Carveth;Surg., Gynec. & Obst.,1962
5. The Comparative Anatomy of the Domesticated Animals;Chauveau,1891