TY - JOUR T1 - Questionnaire of the European Community for Coal and Steel (ECSC) on respiratory symptoms. 1987--updating of the 1962 and 1967 questionnaires for studying chronic bronchitis and emphysema JF - European Respiratory Journal JO - Eur Respir J SP - 165 LP - 177 DO - 10.1183/09031936.93.02020165 VL - 2 IS - 2 AU - A Minette Y1 - 1989/02/01 UR - http://erj.ersjournals.com/content/2/2/165.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -