Grab bars

There are websites about grab bars in the bathroom.

http://www.license.state.tx.us/AB/abtas4c.htm#ToP
This is website about standard of bathroom including the position of every objects in the bathroom.

http://www.grabrail.co.uk/faq.htm
This is safety product company website that told me about kinds of grab bars, position to install and material.

http://www.godonnier.fr/anglais/collections/barres_de_maintien.htm
Another safety product company website is tall a lot of information about grab bars.

http://www.rd.com/content/openContent.do;jsessionid=C98387ED37B8E1E9C8D3AF750F71D631.app1_rd2?contentId=18089
This is how to website that told the way to install the garb bars in the bathroom.