Which type of consent must mr. bowden give prior to having his procedure done next week?

Prior to having his procedure, Mr. Bowden has to give his WRITTEN INFORMED CONSENT.
Informed consent refers to the process in which patients are informed by the health providers about the proposed medical treatment they want to undergo. The nature of the treatment, its benefits, harms, risks and alternatives have to be discussed.
A written informed consent involves signing the documents that have to do withe the procedure.
Informed consent can be oral or written.

If a huge trend is in place and a company does not take part in it or speak about it they might be criticized for their lack of corporate  social responsibility.  hope this you!