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  Indian J Med Microbiol
 

Figure 4: Scatter plot showing relation between mean vitamin D level and FEV1% of predicted (a) all patients, (b) smokers, (c) ex-smokers, (d) non-smokers

Figure 4: Scatter plot showing relation between mean vitamin D level and FEV1% of predicted (a) all patients, (b) smokers, (c) ex-smokers, (d) non-smokers