[Diagnosis of the multicentric origin of tumors of the esophagus].
D001706:Biopsy; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D004945:Esophagoscopy; D006801:Humans; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*
K diagnostike mul'titsentrichnogo vozniknoveniia opukholeĭ v pishchevode