0 What is a cardiac arrhythmia? January 20, 2018 by John Furst · Published January 20, 2018 · Last modified December 26, 2017
0 A guide to lightning and electrical injuries for first aiders October 30, 2016 by John Furst · Published October 30, 2016 · Last modified October 27, 2016
1 What factors can affect blood pressure? March 19, 2016 by John Furst · Published March 19, 2016 · Last modified February 13, 2016