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<风格面对=“正常”字体= " default" size="100%">“Incidence of probable occupational asthma and changes inairway calibre and responsiveness in apprentice welders”. M. ElZein, J‐L. Malo, C. InfanteRivard, D. Gautrin. <em>Eur Respir J</em> 2003; 22: 513–518.</style>