APA

Packer D. L., Ellenbogen K. A., Colavita P. G., O'Callaghan W. G., German L. D. & Prystowsky E. N. (19890126). Utility of introducing ventricular premature complexes during reciprocating tachycardia in specifying the location of left free wall accessory pathways. : The American journal of cardiology.

Chicago

Packer D L, Ellenbogen K A, Colavita P G, O'Callaghan W G, German L D and Prystowsky E N. 19890126. Utility of introducing ventricular premature complexes during reciprocating tachycardia in specifying the location of left free wall accessory pathways. : The American journal of cardiology.

Harvard

Packer D. L., Ellenbogen K. A., Colavita P. G., O'Callaghan W. G., German L. D. and Prystowsky E. N. (19890126). Utility of introducing ventricular premature complexes during reciprocating tachycardia in specifying the location of left free wall accessory pathways. : The American journal of cardiology.

MLA

Packer D L, Ellenbogen K A, Colavita P G, O'Callaghan W G, German L D and Prystowsky E N. Utility of introducing ventricular premature complexes during reciprocating tachycardia in specifying the location of left free wall accessory pathways. : The American journal of cardiology. 19890126.