%0 Journal Article %A Miroslawa Maria Gorecka %A Richard Armstrong %A Caroline Daly %T Unusual cause of pericardial effusion: IgG4-related disease %D 2019 %R 10.1136/bcr-2019-230505 %J BMJ Case Reports %P e230505 %V 12 %N 6 %U https://casereports.bmj.com/content/bmjcr/12/6/e230505.full.pdf