Kaplan Publishing USMLE Step 1: Qbook : Our 80 Year's Expertise = Your Competitive Advantage. 850 Exam-Like Practice Questions to Boost Your Score / by: Kaplan Medical - 9th edition - New York Kaplan Medical 2019 - 348 p. ISBN: 9781506250267 Subjects--Topical Terms: MedicineClinical MedicineUSMLE STEP 1 Subjects--Index Terms: მედიცინა კლინიკური მედიცინა Universal Decimal Class. No.: 61 / K-20