Illustration: Regiona chest - Movement recorder fro measuring the comparative activities of different parts of the chest developed by particular occupation etc., Characteristic of different types of breathing. .Fig.13A, page 157 in "Healthy growth : a study of the relation between the mental and physical development of adolescent boys in a public day school".
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Illustration: Regiona chest - Movement recorder fro measuring the comparative activities of different parts of the chest developed by particular occupation etc., Characteristic of different types of breathing. .Fig.13A, page 157 in "Healthy growth : a study of the relation between the mental and physical development of adolescent boys in a public day school".
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