TY - JOUR T1 - Precapillary Systemic-pulmonary Anastomoses JF - Thorax JO - Thorax SP - 225 LP - 237 DO - 10.1136/thx.18.3.225 VL - 18 IS - 3 AU - Margaret Turner-Warwick Y1 - 1963/09/01 UR - http://thorax.bmj.com/content/18/3/225.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -