“特发性室性心动过速:发生机制和治疗” Management of Benign Biliary Strictures:Biliary Enteric Anastomosis Vs endoscopic Stenting Perinatal and Neonatal Determinants of Childhood Type 1 Diabetes:A Case -Control Study in Yorkshire,U.K. Clinical Effects of Adrenergic Blockade in Chronic Heart Failure:A Meta-Analysis of Double -Blind,Placebo- controlled,Randomized trials“特发性室性心动过速:发生机制和治疗” Management of Benign Biliary Strictures: Biliary Enteric Anastomosis Vs endoscopic Stenting Perinatal and Neonatal Determinants of Childhood Type 1 Diabetes: A Case -Control Study in Yorkshire, U.K. Clinical Effects of Adrenergic Blockade in Chronic Heart Failure: A Meta –Analysis of Double -Blind, Placebocontrolled, Randomized trials