权威例句
Optimizing the AV delay in DDD pacemaker patients with high degree AV block: mitral valve Doppler versus impedance cardiography.Guidelines for ATC classification and DDD assignmentAcute hemodynamic effects of biventricular DDD pacing in patients with end-stage heart failure.Long-term results of dual-chamber (DDD) pacing in obstructive hypertrophic cardiomyopathy. Evidence for progressive symptomatic and ...Establishment of ddd 1 mtv 2 mtv 2 nu nu and ddd 1 mtv 2 mtv 2 nu plus mice preliminary characterization in relation to mtv antigen ...Use of gc ms sim for rapid determination of plasma levels of o p' ddd and o p' dde and o p' dda医院药品DDD数排序分析的原理及利用Readily functionalized AAA–DDD triply hydrogen-bonded motifsA new megaraptoran theropod dinosaur from the Upper...tanina