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. Author manuscript; available in PMC: 2019 Mar 20.
Published in final edited form as: Int J Biosens Bioelectron. 2018 Aug 6;4(4):195–202. doi: 10.15406/ijbsbe.2018.04.00125

Figure 2.

Figure 2

Sample of a photoplethysmogram signal where P-P interval is marked