RT Journal Article SR Electronic T1 Spontaneous pneumomediastinum and pneumorrhachis in a healthy girl JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e241077 DO 10.1136/bcr-2020-241077 VO 14 IS 2 A1 Rodrigues, Jorge A1 Costa, Raquel Monteiro A1 Magalhães, Joana A1 Santos, Elisabete YR 2021 UL http://casereports.bmj.com/content/14/2/e241077.abstract