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Endoscopic retrograde cholangiopancreatography in elderly patients: Difficult cannulation and advers
[期刊论文] 作者：Fatema Tabak,Hui-Shan Wang,Qua,
来源：世界临床病例杂志 年份：2020
BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP)is a valuable therapeutic technique for pancreatobiliary diseases,and its application in the elde...
[期刊论文] 作者：DONG Wen-cai,FU Qiang,WANG Qua,
来源：农业科学学报：英文版 年份：2017
Plough pans(PPs),common in the black-soil region of northeastern China,have significant effects on the root systems of crops. We conducted a field experiment to...
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