Surgical relief of oesophageal impaction in a whooper swan.
D000818:Animals; D001715:Bird Diseases / Q000601:surgery*; D001717:Birds; D004947:Esophagus / Q000601:surgery; D005547:Foreign Bodies / Q000601:surgery / Q000662:veterinary*; D007855:Lead Poisoning / Q000662:veterinary*; D008297:Male; D006109:Poaceae