Hi everyone, I was wondering if somebody can help me understand a copy of terms. I am not sure by what is meant by DO schools. Are certain schools designated as DO and others as standard medical schools? Also, what are the most competitive residency programs in the States? What kind of preparation in medical school is required to be competitive for these programs (USMLE step 1 percentile, research papers etc). Right now, I am looking into cardiology, neurology, orthopaedic surgery, and ophthalmology. I would appreciate any information that you provide. Thanks very much.