Oral anticoagulants for left atrial thrombus resolution in nonvalvular atrial fibrillation or flutter: Building the pyramid of evidence for off‐label drug use. Issue 12 (31st October 2019) - Hussain, Aliza; Katz, William E.; Genuardi, Michael V.; Bhonsale, Aditya; Jain, Sandeep K.; Kancharla, Krishna; Saba, Samir; Shalaby, Alaa A.; Voigt, Andrew H.; Wang, Norman C.