From: Quality problems of clinical trials in China: evidence from quality related studies
Subject
Number
Item
Researcher
1
Weak registration awareness [14]
2
Unregistered protocol before implementation [14, 16]
Research
3
Non-standard or incomplete research protocol [9, 10, 12, 18]
4
Lack of normative data management system [15]
5
No claims of sharing raw data and superabundant registration [15]