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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 82.4
2. OnlineMedEd | Clinical 46.5
3. Anki 35.2
4. First Aid for the USMLE Step 2 CK Clinical Knowledge 20.5
5. AMBOSS 16.3
6. Master the Boards USMLE Step 2 CK 12.8
7. Step-Up to Medicine 8.6
8. USMLE Step 2 Secrets 7.0
9. SketchyPharm 5.3
10. SketchyIM 4.4
11. Step-Up to USMLE Step 2 3.7
12. Dr. Pestana's Surgery Notes 3.7
13. SketchyMicro 2.6
14. USMLE Step 2 CK Lecture Notes: Internal Medicine 2.4
15. Pathoma 2.2
16. SketchySurgery 2.2
17. SketchyPeds 2.0
18. First Aid Cases for the USMLE Step 2 CK 2.0
19. USMLE Step 2 CK Lecture Notes: Obstetrics and Gynecology 1.8
20. Kaplan Qbank 1.8

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