[Esophageal neoplasms in Puerto Rico. III. Rational study based on tumor stages].
D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000601:surgery / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D011647:Puerto Rico
Carcinoma del esófago en Puerto Rico III. Tratamiento racional basado en estadío del tumor