Figure 2
From: Greater central airway luminal area in people with COVID-19: a case–control series

The luminal area of the conducting airways in the height-matched males (A) and females (B). Data are presented as mean ± SE. Trach, Trachea; RMB, right main bronchus; RUL; right upper lobe; BrINT; bronchus intermediate; LMB, left main bronchus; LUL, left upper lobe; LLL, left lower lobe.