Two questions: 1. Which 5 states are the ones in which you have to do an osteopathic internship in order to gain a license to practice medicine in that state? 2. In those states, can a DO match into an MD residency without having done an osteopathic internship? and if so, will there be any accreditation problems along the way in term of state licensure and MD board certification? Thanks much for any answers.