TY - GEN AU - McGrath,Brent M AU - Zhao,Xi TI - Country cardiograms case 54 SN - 1488-237X PY - 2016///0407 KW - Adult KW - Atrioventricular Block KW - diagnosis KW - Electrocardiography KW - Humans KW - Male N1 - Publication Type: Case Reports; Journal Article ER -