Lesions on X - ray are often combined and occurred in the following order: interstitial lesions 212 (96.4%), ground - glass opacity 205 (93.2%), blurred nodules 140 (63.6%), consolidation 103 (46.8%), nodular lesions in the D group 96 (43.6%) were significantly higher than in the recovery group 44 (20%) with p < 0.0001.