title: Re: disappearing ring in chest cavity.
authors.forename: Sivasubramanian
authors.initials: S
authors.lastname: Srinivasan
mesh_terms: D015505:Chest Tubes; D001026:Coronary Artery Bypass; D006801:Humans; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D035423:Thoracic Cavity