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. 2019 Feb 11;14(2):e0211738. doi: 10.1371/journal.pone.0211738

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© 2019 Tian et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — The gated sequence applies an SR pulse (composed of 6 pulses) after an ECG trigger followed by acquisition of an SMS set. 3–6 SMS sets were acquired depended on the heartrate. The ungated sequences continuously acquire 2 (sequence 1) or 3 (sequence 2) SMS sets, with one SR pulse applied for each SMS set (sequence 1) or one SR pulse applied for all SMS sets (sequence 2).