Ng, G Y <br/><br/>
Maximal inspiratory and expiratory mouth pressures in sitting and half-lying positions in normal subjects.  [electronic resource] 

 -  Respiratory medicine  May 1991 
 - 209-11 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0954-6111 
<br/><br/><label>Standard No.: </label>10.1016/s0954-6111(06)80081-8  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Analysis of Variance<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Mouth--physiology<br/>Posture--physiology<br/>Pressure<br/>Reference Values<br/>Respiratory Function Tests<br/>Respiratory Physiological Phenomena