We have approximately 40 PDFs. Each PDFs is a study written in Chinese. Each study has between 5 to 10 references. We are looking for Chinese students with a biomedical (any area) background that: 1. Can look at each reference and decide whether (or not) that reference is a randomized trial. The probability of being a randomized trial (target) is very low: 1/10 or less. There is no translation involved. Candidates should: a) Have access to CNKI/Wanfang Data and other resources; There are no translations involved. Project Type: One-time project You will be asked to answer the following questions when submitting a proposal: 1. Do you have access to CNKI/WANFANG or other resources to retrieve the articles? 2. Are you familiar with randomized trials? Please, explain.