TY - JOUR T1 - A New Index of the Intrapulmonary Mixture of Inspired Air JF - Thorax JO - Thorax SP - 111 LP - 116 DO - 10.1136/thx.7.1.111 VL - 7 IS - 1 AU - Margaret R. Becklake Y1 - 1952/03/01 UR - http://thorax.bmj.com/content/7/1/111.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -