[A CONTRIBUTION TO INSTRUMENTAL PERFORATION OF THE ESOPHAGUS].
D004939:Esophageal Perforation; D004945:Esophagoscopy; D006801:Humans; D007049:Iatrogenic Disease
ESOPHAGEAL PERFORATION; ESOPHAGOSCOPY; IATROGENIC DISEASE
EIN BEITRAG ZUR INSTRUMENTELLEN PERFORATION DER SPEISEROEHRE.