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ECG crash course: https://amzn.to/2Ww9kkl (Amazon affiliate link) ECG course for Isabel: https://amzn.to/2W0iWQn (Amazon affiliate link) This is just a reupload of the old medical videos! Some of the information is considered outdated; you can find the new videos under the following link: • Understanding ECG; the basics (ECG Cr...