What are the better companies to do mobile medical care (HIT) in Chengdu?

I also know about Electronic Medical Star, Chongqing Zhonglian and Yuan Qiu Software. Chengdian is a subsidiary of University of Electronic Science and Technology of China, Zhonglian is an established HIS, and Yuan Qiu is a rising star, focusing on Android mobile phone care, which is basically leading in China. Medical Star and Zhonglian are mainly engaged in HIS and EMR. There are still many hospitals using their HIS.