All the indicators of pulmonary function appeared an improving trend in those with tea polyphenols and no such trend was found in that with vitamin C except for its VC.

• 服药6 个月时， 茶多酚组的各项指标仍呈好转趋势， 而Vit C 组除肺活量外， 其余各指标则无好转趋势。