Hello folks, I really need some help. My father is a foreign trained doctor with more than 25 years of expertise. He is now 54, and was initially a little uneasy about taking the licensing exams (He has been in the States for 3 years). Finally, he has decided to prepare and take them. According to your experience, which are the best preparation materials for the USMLEs both step I and II. Is it Kaplan? Is it better to take step II first and then step I? Any comments are greatly appreciated. Thanks.