Altenburg, Josje, Erik B Wilms, and Wim G Boersma. 2019. “The Relationship Between Serum and Sputum Levels of Azithromycin and Clinical Endpoints in Patients With Bronchiectasis Using Azithromycin Maintenance Treatment”. Archives of Pharmacy and Pharmaceutical Sciences 3 (1):019-025. https://doi.org/10.29328/journal.apps.1001014.