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. 2019 Nov-Dec;36(6):492–498. doi: 10.4103/lungindia.lungindia_141_19

Figure 2.

Figure 2

(a) Comparison of effect of vitamin D ≤20 nmol/l on lung function among groups. (b) Comparison of effect of vitamin D 21–50 (nmol/l) on lung function in groups. (c) Comparison of effect of vitamin D ≥51 (nmol/l) on lung function in groups. Group 1 = Vitamin D <21 nmol/l, Group 2 = Vitamin D >21–50 nmol/l, Group 3 = Vitamin D >50 nmol/l