information for disabled people in wheelchairs visiting shanghai

I will be in shanghai one month this summer and need informations for people in wheelchairs.
1. where can i find out more details abaot the access of the public transport?
2. which museums are accessible for wheelchair-users?
3. are there wheelchair accessible bars and restaurants (with an accessible bathroom)?
4. are there any public bathrooms for people in wheelchairs? where do i find them?
5. does a informative broschure exist?
6. ... every informations that might be helpful are very welcome:-)
thank you