61332992
9781651364314
Marcus Porges is the author of 'Vagus Nerve: 2 BOOKS IN 1. Vagus Nerve & Vagus Nerve Exercises. A Complete Self-Help Guide to Stimulate Vagal Tone. Practical Exercises for Chronic Illness, Depression, Anxiety and Trauma', published 2019 under ISBN 9781651364314 and ISBN 1651364311.
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