title: [The endoscopic examination, anatomical variants and special circumstances].
authors: D
authors: D
authors: Simmen
authors: N
authors: N
authors: Jones
mesh_terms: D000553:Ambulatory Care; D003937:Diagnosis, Differential; D019723:Endoscopes; D006801:Humans; D009297:Nasal Mucosa / Q000473:pathology; D009666:Nose / Q000002:abnormalities*; D009668:Nose Diseases / Q000175:diagnosis*; D010254:Paranasal Sinus Diseases / Q000175:diagnosis*; D010256:Paranasal Sinuses / Q000002:abnormalities*