[Evaluation of esophageal carcinoma concomitant with achalasia--a statistical reports of 139 institutes in Japan].
D000328:Adult; D000367:Age Factors; D000368:Aged; D004931:Esophageal Achalasia / Q000150:complications* / Q000453:epidemiology; D004938:Esophageal Neoplasms / Q000150:complications* / Q000453:epidemiology; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D011795:Surveys and Questionnaires