Fig. 1.

Sputum weight produced using different nebulizers. Data are presented as medians. No differences were observed in preprocessed sputum from the controls (p = 0.522) and patients with (p = 0.298) [Fig. 1a] or for selected sputum from controls (p = 0.143) and patients with asthma (p = 0.113) [Fig. 1b] between the ultrasonic and smart nebulizers