Hi, Marion,
I think your link can provide an excellent resource for those who seek second opinions or multidisciplinary opinions. But as a patient who do not know about the inner workings of this kind medical arrangement, As caregivers or patient,YOU MUST ASK FOR THIS ARRANGEMENT even you think you have requested your attending doctor to do so, and I think you should contact the person on the list of that medical establishment to double check for sure.
http://cancerguide.org/medline.html
The above link is for patient or caregiver who wants to know and learn more than what this site can offer in terms of the most up to date medical knowledge . It may takes time to learn the system, but it may worth the effort.
God bless