%0 Journal Article %A NMW %T Beta Blockers and Cardiac Arrhythmias %D 1993 %R 10.1136/thx.48.2.192 %J Thorax %P 192-192 %V 48 %N 2 %U https://thorax.bmj.com/content/thoraxjnl/48/2/192.1.full.pdf