1. A study of arrival of excitation at selected ventricular sites during human bundle branch block using bipolar catheter electrodes. Chest;Castellanos, Jr., A.; Agha, A.S.; Befeler, B.; Castillo, C.A.,1972
2. Usefulness of vectorcardiography combined with His bundle recordings and cardiac pacing in evaluation of the pre-excitation (Wolff-Parkinson-White) syndrome;Castellanos, Jr., A.; Agha, A.S.; Portillo, B.; Myerburg, R.J.;American Journal of Cardiology,(I972b).
3. His bundle recordings in right bundle-branch block coexisting with iatrogenic right ventricular pre-excitation;Castellanos, Jr., A.; Castillo, C.A.;British Heart Journal,1972
4. Bipolar coronary sinus lead for left atrial and left ventricular recording;Castellanos, Jr., A.; Castillo, C.A.; Myerburg, R.J.;American Heart journal,(197I).
5. His bundle recordings in patients with reciprocating tachycardias and Wolff-Parkinson-White syndrome;Castillo, C.A.; Castellanos, Jr, A.;Circulation,1970