I have worked in hospitals for over 30 years. Most do not allow concealed carry, but then again most do not check. I have tried just about everything from one time or another. The most comfortable, all day carry is the Smart Carry with a Kahr PM9/Laserguard. It has enough so as not to be a mouse, and is flat enough to hide well under scrub pants. Tee Shirt holsters, shoulder holsters for under the shirt, belly bands, etc. are easily "made" from a friendly hug. The Smart Carry is usually "safe".