Distribution of iron-laden and non-iron-laden lesions at baseline, pattern switch and formation of new lesions by disease type.

Distribution of iron-laden and non-iron-laden lesions at baseline, pattern switch and formation of new lesions by disease type.按疾病类型划分的基线期载铁病灶与非载铁病灶分布、病灶模式转换及新病灶形成情况。