Hello dongxliu
I have gone through your project Medical big data
here we are for providing you the best service with my expertise in Graphic Design, Illustrator, Logo Design, Photoshop, User Interface / IA as we understand your requirement fully. and can provide you the best service
we are a organisation of website and application development services
I can do this within your budget too $750 - $1500 USD
Waiting for your responce
Thanks,
Mmadi