[Table/Fig-3]:

Pre and post treatment values of PEFR (L/sec)

Groups (n) †	At Baseline visit	After 4 wk of treatment	p-value
Group 1 (25)	4.72 ± 1.30	5.16 ± 1.35	<0.01
Group 2 (25)	5.80 ± 1.92	6.21 ± 1.82	<0.01
Group 3 (25)	5.56 ± 1.84	6.10 ± 1.90	<0.01

., †n = number of patients in each group. Values expressed as mean ± SD, p< 0.05 being considered significant