PK and PD of Antibiotics for Treatment of Mycobacterium Abscessus Pulmonary Disease

Inclusion Criteria: * Age 20 years old or more * Fulfilling the criteria of NTM-PD (1, 13), for which causative organism belongs to M. abscessus or M. massiliense * Needing a new antibiotic treatment for M. abscessus complex-PD due to symptomatic aggravation, radiographic progression or both (those who have previous history of treatment are eligible) * Consenting to receive antibiotic treatment based on currently recommended regimens (1, 13) and to participate in this study Exclusion Criteria: * Receiving any treatment for NTM-PD within 4 weeks * Having end-stage renal disease needing hemodialysis, chronic liver disease, or active malignancy needing treatment during the treatment period