Dogbone,
Your post raises a question I have about LORs. Most schools ask for 3 letters and recommend that one of them come from the ortho chair. Is it an unwritten 'rule' that your other letters should come from prescribed sources; ie one medicine/non-surgery letter, and another ortho letter, etc.
I have (perhaps mistakenly) assumed that it would be best, unless otherwise specified by the program, to send all ortho attending letters including one from the chairman, and have them be of of as good a quality as possible, and from someone 'known' if possible. Everyone in the know, please feel free to respond. Thanks