Development and Validation of LC-MS/MS Method for Nintedanib and BIBF 1202 Monitoring in Plasma of Patients with Progressive Pulmonary Fibrosis Associated with Systemic Sclerosis. - Kiełczyńska, Anna; Gilant, Edyta; Pawiński, Tomasz; Szlaska, Iwona; Buś-Kwaśnik, Katarzyna; Pesta, Edyta; Kuc, Daria; Kwiatkowska, Brygida (Pharmaceutics, 2025)