Popova, Gorica, Katerina Boskovska, Ivana Arnaudova-Danevska, Olga Smilevska-Spasova, and Tatjana Jakovska. 2019. “Sputum Quality Assessment Regarding Sputum Culture for Diagnosing Lower Respiratory Tract Infections in Children”. Open Access Macedonian Journal of Medical Sciences 7 (12):1926-30. https://doi.org/10.3889/oamjms.2019.551.