Advice on preparing for the practical exam

[RICKET]

I will have an interview at USC and I have heard that Duggan institute and a dentist in Milpitas help to prepare for the practical exam. However, I do not know which one is better. Please give me some advices or let me know if you know someone else.
Thanks a lot and good luck to all of the interviewees

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[balli2001in]

Dont join duggan

 

[RICKET]

Thank you for your advice.