pili annulati英美网络 环纹发; 环状发医学双语例句Cytokeratin expression in pili annulati hair follicles花斑发毛囊中细胞角蛋白的表达Update on detection, morphology and fragility in pili annulati in three kindreds3个家系环纹发的脆性、形态学和检测研究最新进展