RT Journal Article SR Electronic T1 Prinzmetal angina: echocardiographic captured and angiographically proven without provocative testing JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e236353 DO 10.1136/bcr-2020-236353 VO 13 IS 9 A1 Yashwant Agrawal A1 Pramod Kumar Ponna A1 Abdul R Halabi A1 Feras Aloka YR 2020 UL http://casereports.bmj.com/content/13/9/e236353.abstract AB