RT Journal Article SR Electronic T1 Elderly man with subcutaneous emphysema JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 629 OP 652 DO 10.1136/emermed-2020-210480 VO 38 IS 8 A1 Ankit Kumar Sahu A1 Soumitra Thandar A1 Roshan Mathew YR 2021 UL http://emj.bmj.com/content/38/8/629.abstract AB