https://www.amazon.co.uk/Breathe-Well-Be-Hypertension-Disorders/dp/0471324361/ref=sr_1_4?s=books&ie=UTF8&qid=1497939989&sr=1-4&keywords=robert+fried

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Breathe Well, Be Well, A Program to Relieve Stress, Anxiety, Asthma, Hypertension, Migraine and Other Disorders for Better Health