In its anatomy browser BioDigital has a feature where the website displays text that it doesn't license under CC BY-SA. At the end of that text the user can click on "Read more". If he does an inline popup appears showing information from Wikipedia mobile. This popup refers at it's end to being licensed CC-BY-SA.
Is it in compliance with the CC BY-SA license to use content this way? Can they show CC BY-SA licensed content from Wikipedia while showing on the same screen content that they don't license under CC BY-SA?