Neurofibromatosis 1 (NF1) is a frequent genetic disease. Diagnostic criterias were established in 1988. The patients can exhibit various and unpredictable compl
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患者女,42岁,因"便血1年余,加重伴粪便形状改变1周"人院.患者无明显诱因出现便血,色鲜红,无黏液脓血便,无恶心、呕吐,无反酸、嗳气、呕血,无腹痛、腹胀及腹泻,无里急后重,无发热、乏力,病情反复发作1年余,未行诊治.人院前1周,患者便血加重,大便形状改变,呈细条状.结肠镜检示:直肠息肉.直肠指检:肛门括约肌收缩功能良好,距肛门约7 cm(12点)处可扪及肿物,2 cm×2 cm,活动度不大,质软
This article reports a radiolarian fauna from the upper Dalong(大隆) Formation,Ping-dingshan(平顶山),Chaohu(巢湖),Anhui(安徽) Province,which includes 15 genera
Background: Endoscopic mucosal resection with a cap-fitted panendoscope (EMRC) such as a soft prelooped hood is a useful, effective, and safe technique. One pro
To quantify the influences of soil heterogeneity on infiltration, a spatial averaging infiltration model for layered soil (SAI model) is developed by coupling t
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The settlement curve of the foundation endured the ramp load is an S-type curve,which is usually simulated via Poisson curve.Aimed at the difficulty of preferen
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Three fragments of the Archean oceanic crust have been found between the Archean granulite belt and the Paleo-Proterozoic Hongqiyingzi group in North China crat