{{Cite journal| doi = 10.1016/j.ajem.2019.10.040| issn = 1532-8171 (Electronic) 0735-6757 (Linking)| volume = 38| issue = 4| pages = 849–3-849 e5| last1 = Ringwald| first1 = M.| last2 = Crich| first2 = A.| last3 = Beysard| first3 = N.| title = Smart watch recording of ventricular tachycardia: Case study| journal = Am J Emerg Med| date = 2019-12-02| pmid = 31785973}}