We like the different font sizes with the focus on "Advanced". Is there a way to make the swirl into something that could be interpreted as a stomach and scope?
The green and blue is nice, as are the overall proportions. I guess we're still looking to try and tweak things to involve an element of our medical specialty, although dealing with stomachs, livers, and intestines doesn't make for cool art like hearts, brains, and spines do. #2 does almost have the feel of a stomach in the swirl with the straight line potentially representing an endoscope. We like the symbol in front of the name rather than under it, as well as the proportions of #2 compared to #4 and #5.
Though some of us prefer the abstract, the push within our group is to go with something that has a direct reference to our specialty. We like the overall feel and proportions but wondered if you might try to adapt #52 to reflect that desire. Maybe the central element of the swirl could project underneath the Advanced rather than the upper element projecting, to suggest an endoscope passing through a lumen. Thanks for the great entries.