Fig. 3From: Can severe asthmatic patients achieve asthma control? A systematic approach in patients with difficult to control asthma followed in a specialized clinicFEV1 behaviour during systematic protocol between controlled and non-controlled groups. B: baseline, W: week. *p < 0.05 (Non-controlled vs Controlled); a p < 0.05 (W2 vs B); b p < 0.05 (W12 vs B)Back to article page