PT - JOURNAL ARTICLE AU - Semple, S. J. G. AU - Young, I. Maureen TI - A Trial of the Direct Method for Determining the Tensions of O<sub>2</sub> and CO<sub>2</sub> in Blood AID - 10.1136/thx.14.3.251 DP - 1959 Sep 01 TA - Thorax PG - 251--253 VI - 14 IP - 3 4099 - http://thorax.bmj.com/content/14/3/251.short 4100 - http://thorax.bmj.com/content/14/3/251.full SO - Thorax1959 Sep 01; 14