Atchima Udomwannon. (1997) Study of the relationships between physiological changes and postural distortion of the cervical spine. Mahidol University,:ม.ป.ท.Atchima Udomwannon. 1997. Study of the relationships between physiological changes and postural distortion of the cervical spine. ม.ป.ท.:Mahidol University,;Atchima Udomwannon. Study of the relationships between physiological changes and postural distortion of the cervical spine. ม.ป.ท.:Mahidol University, 1997. Print.