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Here are the most popular resources that people use for the USMLE Step 2 CK on Cram Fighter. These aren't necessarily the best study resources, but they should be a good starting point.

Rank Title (all editions) % of students used
1. UWorld 69.5
2. OnlineMedEd 43.6
3. Master the Boards USMLE Step 2 CK 23.5
4. Anki 21.0
5. First Aid for the USMLE Step 2 CK Clinical Knowledge 16.9
6. Step-Up to Medicine 15.8
7. SketchyPharm 7.4
8. SketchyMicro 7.2
9. Kaplan Qbank 6.1
10. AMBOSS 5.6
11. USMLE Step 2 CK Lecture Notes: Internal Medicine 5.4
12. Dr. Pestana's Surgery Notes 5.4
13. USMLE Step 2 Secrets 5.2
14. Step-Up to USMLE Step 2 4.7
15. USMLE Step 2 CK Lecture Notes: Psychiatry and Epidemiology & Ethics 4.7
16. USMLE Step 2 CK Lecture Notes: Obstetrics and Gynecology 4.5
17. Pathoma 4.3
18. USMLE Step 2 CK Lecture Notes: Surgery 4.1
19. USMLE Step 2 CK Lecture Notes: Pediatrics 4.1
20. COMBANK 3.8

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