试述小儿肥胖症的治疗原则。
描述分类资料的常用指标是()。 ["均数","标准差","标准误","相对数","几何均数"]
早期确诊血源性骨髓炎具有重要意义的是() ["全身中毒症状","干骺端疼痛及深压痛","白细胞总数及中性粒细胞增高","局部分层穿刺在骨膜下或骨髓腔内抽到脓液","X线检查示有虫蛀样骨质破坏及骨膜增生"]
慢性骨髓炎迁延不愈、反复发作的最主要原因是() ["窦道的形成","死骨的残留","瘢痕组织增生","机体抵抗力低","细菌毒力太强"]
脑池是() ["蛛网膜与硬脑膜之间的间隙","蛛网膜与软脑膜之间的间隙","软脑膜与脑皮层之间的间隙","软脑膜与骨膜之间的间隙","软脑膜与硬脑膜之间的间隙"]
维生素B缺乏症的临床表现有哪些?