 biopsy specimens from patients with moderate and severe asthma compared with those from patients with mild asthma (grade 0 \[0-0\] vs grade 0 \[0-0\], *P* \< .000; grade 0 \[0-0\] vs grade 0 \[0-0\], *P* \< .000; [Fig 0](#fig0){ref-type="fig"}, *D*