The 3rd and 4th year Clinical Fellowship from the Cystic Fibrosis Foundation supports (adult and pediatric) physicians who have completed at least two years of fellowship training in a subspecialty related to cystic fibrosis care. This additional fellowship training is intended for physicians wishing to pursue clinical or basic research related to cystic fibrosis. The Fellowship must be conducted in the USA and international applicants must have the legal right to work in the USA during their fellowship period. Applicants may apply for up to 100,000 USD/year in direct research costs for up to 2 years. Applications close on February 16, 2023.