RBBB with transvenous pacemaker.

MLA

Klein, H. O. “RBBB with Transvenous Pacemaker.” American Heart Journal, vol. 111, no. 3, Mar. 1986, pp. 622–23. EBSCOhost, https://doi.org/10.1016/0002-8703(86)90085-2.

APA

Klein, H. O. (1986). RBBB with transvenous pacemaker. American Heart Journal, 111(3), 622–623. https://doi.org/10.1016/0002-8703(86)90085-2

Chicago

Klein, H O. 1986. “RBBB with Transvenous Pacemaker.” American Heart Journal 111 (3): 622–23. doi:10.1016/0002-8703(86)90085-2.