An evaluation of peak expiratory flow monitoring: a comparison of sitting versus standing measurements.
McCoy, Emily K⋅Thomas, Jeremy L⋅Sowell, Rebecca S⋅George, Christa⋅Finch, Christopher K⋅Tolley, Elizabeth A and Self, Timothy H
Journal of the American Board of Family Medicine : JABFM, vol. 23, (no. 2), pp. 166-70, 2010 Mar-Apr. | Journal Article