tasked with multiple receivers

Hi all, I have a question... long story short I have been tasked with putting multiple receivers in multiple locations within a building.. actually in OR's in a hospital... I have already had the opportunity to split an antenna signal and put it to two different receivers... that worked pretty well... I have one feed leg off my antenna into the general area where I will do more splitting.. knowing I will have to attenuate the signal.. but has anybody tried to run 11 receivers off the same antenna?? My doc's cannot agree on the same channel that I could send into the OR's... thanks for any input