TY - JOUR T1 - AUTHOR'S REPLY JF - Thorax JO - Thorax SP - 75 LP - 75 DO - 10.1136/thx.46.1.75-b VL - 46 IS - 1 AU - F Rodriguez De Castro AU - J Caminero AU - G Julia Serda AU - P Cabrera Y1 - 1991/01/01 UR - http://thorax.bmj.com/content/46/1/75.4.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -