1. Surgery of the Esophagus;Postlethwait,1979
2. Pseudosarcoma of the esophagus;Razzuk;J Thorac Cardiovasc Surg,1971
3. Lower esophageal disease in infants and children;Fearon;Ann Otol Rhinol Laryngol,1961
4. Tumors and proliferations of adipose tissue;Allen,1981
5. Pathology of Soft Tissue Tumors;Hajdu,1979