https://www.selleckchem.com/pr....oducts/zinc05007751.
Because it is not visible on the 12-lead ECG, few if any electrocardiographers have seen the waveform of sinus node (SN) depolarization. Yet, SN depolarization is present before every P wave during all sinus rhythms. Herein, a case is presented in which a recorded SN depolarization waveform is observed.Purpose To determine whether an association exists between dry eye disease (DED) and statin use and/or dyslipidemia. Design Retrospective, case-control study. Methods -SETTING University of North Carolina (UNC) affiliated healthcare