Results The prominent secondary follicles presented in 11 28.2% of 39 ITP cases, but only 16 57.1% in control cases.
结果39例儿童ITP中，有11例（28.2%）在白髓组织内出现明显的次级淋巴滤泡增生现象，而对照组为16例（57.1%）；
The primary follicles and secondary follicles of Rex rabbits appeared during the 18th to 24th day of embryo development.
力克斯兔的初级毛囊、次级毛囊于胚胎的18 ~ 24天先后出现。
The density of pilosebaceous units decreases throughout life, mainly because of the poor development of the secondary follicles.
一生中，毛囊皮脂腺单位逐渐减少，主要的原因是次级毛囊生长能力较低。
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