RT Journal Article SR Electronic T1 Pneumopericardium as a complication of pericardiocentesis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E193 OP E194 DO 10.1503/cmaj.221137 VO 195 IS 5 A1 Triantafyllis, Andreas S. A1 Zamfir, Tatiana A1 Kontogiannis, Nestoras YR 2023 UL http://www.cmaj.ca/content/195/5/E193.abstract