Eucapnic voluntary hyperventilation test decreases exhaled nitric oxide level in children. - Burman, Janne; Malmberg, Pekka; Elenius, Varpu; Lukkarinen, Heikki; Kuusela, Tom; Mäkelä, Mika; Remes, Sami; Jartti, Tuomas (Clinical Physiology & Functional Imaging, 2021)