在讨论雷诺现象患者的鉴定之前，先简单复述一下原发和继发雷诺现象的定义和临床特征。
Prior to discussing the evaluation of the patient with RP, it is helpful to first briefly review the definition and clinical characteristics of the primary and secondary forms of the disorder.
二是先诱导获得愈伤组织，再经继代培养获得胚胎发生。
Embryogenic callus and somatic embryos could be directly obtained on the medium only with ZT, but it was influenced by explant sources.
方法：回顾性分析16例肺癌继发肺脓肿患者术中采用逆行肺切除术，即先处理支气管后处理肺血管的临床资料。
Methods: The clinical data of 16 cases with secondary lung abscess induced by the lung cancer using a retrograde procedure to excise the lesion were analyzed retrospectively.
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