Increased Serum KL-6/MUC1 Level, Neutrophils and Lymphocytes Sputum in Malang Splendid Bird Market Workers. J Respirol Indones [Internet]. 2020 Apr. 30 [cited 2025 Jul. 6];40(2):75-81. Available from: http://www.jurnalrespirologi.org/index.php/jri/article/view/103