title: Letter: Pain relief after thoracotomy.
mesh_terms: D003371:Cough; D006801:Humans; D010149:Postoperative Pain / Q000517:prevention & control* / Q000628:therapy; D010349:Patient Compliance; D011300:Preoperative Care; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery*