I still really like 31 and 32 because they are so clean. I don't think the new ones (112, 113, 114) give the same clean look but I would still like to see a the symbol having more of a clinical message. Maybe a thin medical cross in the middle of the two squares... Or a play on the caduceus (I know before I mentioned not to use it but if it is suggestive of it, that might be ok) or a heart beat tracing. But I really like the clean look you have going...
thank you for your time and continued efforts.