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Affect Decreasing Lung Function in Laundry Installation Worker At Rumah Sakit Umum Pusat H. Adam Malik, Medan. J Respirol Indones [Internet]. 2018 Apr. 30 [cited 2025 Aug. 31];38(2):109-14. Available from: http://www.jurnalrespirologi.org/index.php/jri/article/view/165