I've not heard of St. Kliment... But if you're doing medicine in Bulgaria, go either Sofia or Plovdiv Medical university (They are joint 1st in the Bulgarian uni rankings). Sofia is the capital, so that's where more international conferences and guests are found, its also been going longer than plovdiv, and I hear the semesters are done via rotations Ie: You go on your paediatric rotation for a month and then take that exam and so on. Plovdiv is a nicer place to live imo, prettier, smaller, cheaper city, the uni is also more modern, it has a sim centre, and I've really seen it develop in the past few years and can only see it getting better, the semester/exam format is; you study like 5-10 different subjects at once for one or two semesters, then you take all those exams in the exam period.