1. The measurement of changes in human limb volume by means of a mercury-in-rubber strain gage;Whitney;J. Physiol.,1949
2. Efficacy of five noninvasive infant respiration sensors;Mendenhall,1983
3. Measurement of breath amplitudes: comparison of three noninvasive respiratory monitors to integrated pnsumotachograph;Adams;Pediatr. Pulmonol.,1993
4. Assessment of tidal volume in preterm infants using respiratory inductance plethysmography;Brooks;Pediatr. Pulmonol.,1997
5. A portable, simple sonomicrometer;Stegall;J. Appl. Physiol.,1967