Foreign forays prompt questions about why US non-profit health systems are indulging in such nakedly commercial venturesAcross the street from the Buckingham Palace Garden and an ocean away from its Ohio headquarters, Cleveland Clinic is making a nearly $1bn bet that Europeans will embrace a hospital run by one of America’s marquee health systems.Cleveland Clinic London, scheduled to open for outpatient visits later this year and for overnight stays in 2022, will primarily offer elective surgeries and other treatments for the heart, brain, joints and digestive system.