TY - RPRT TI - Pacemaker rhythms. Apparent VVI (or ? VOO) pacing by AV sequential demand (DVI) pulse generator. AU - S S Barold AU - M D Falkoff AU - L S Ong AU - R A Heinle PY - 1981 DO - 10.1111/j.1540-8159.1981.tb03703.x UR - https://pubmed.ncbi.nlm.nih.gov/6169026/ ID - 6169026 ER -