I found these two resources for audio questions in the USMLE step 1.
http://depts.washington.edu/physdx/heart/demo.html
http://www.wilkes.med.ucla.edu/intro.html
If anybody knows any other useful resources, please share.....
http://depts.washington.edu/physdx/heart/demo.html
http://www.wilkes.med.ucla.edu/intro.html
If anybody knows any other useful resources, please share.....