@article{Amon2016, author = "Miha Amon and Franc Jager", title = "{The ECG of a normal heartbeat.}", year = "2016", month = "10", url = "https://plos.figshare.com/articles/figure/_The_ECG_of_a_normal_heartbeat_/1644393", doi = "10.1371/journal.pone.0148814.g002" }