Abstract
Cite this article as: Yılmaz İ. Confusing Terminology: Difficult Asthma, Difficult-to-Treat Asthma, Difficult-to-Control Asthma, Therapy-Resistant Asthma, Severe Asthma, and Refractory Asthma. Which One is Truly Severe Asthma? Turk Thorac J 2018; 19(4): 235-6.