Rakhmatullov, F.K. et al. 2017. ELECTROPHYSIOLOGICAL EFFECTS OF VALSALVA MANOEUVER DURING EARLY PREGNANCY IN PATIENTS WITH PAROXYSMS OF ORTHODROMIC ATRIOVENTRICULAR TACHYCARDIA. Asian Journal of Pharmaceutical and Clinical Research. 10, 8 (Aug. 2017), 108–112. DOI:https://doi.org/10.22159/ajpcr.2017.v10i8.18827.