CCS usmle world vs. CCS usmlesteps123.com; what is usmle CD?

[dmurali]

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Hello, I have gone through all the threads and I was wondering which is best for CCS prep? Also I was wondering is USMLE CD is one issued after you register for step 3? Please clear this questions out. I would greatly appreciate it.

 

[ScopeHound]

I liked the CCS cases on usmlesteps123.com much better. I'd go with them. I think the MCQs on UW were better though.