肠镜在小儿下消化道出血的临床应用刘里仁刘艳霞王芳林湖北省武汉市儿童医院430016Subjectheadingsgastrointestinalhemorhage/therapy;colonoscopy;colonicpolyps/therapy...
Colonoscopy in children with lower gastrointestinal bleeding clinical application
This paper describes the preparation of two new optically active aliphatic β-amino alcohols (R)-5,5-dimethyl-2-(dimethy-lamino)-1,1-diphenyl-1-hexanol (1a) an