Medical scientists usually need a doctorate degree in biological science. Some medical scientists have medical degrees. Medical scientists typically complete courses in biology, chemistry, physics, engineering, mathematics, and computer science.
Status: Medical Student (Accepted) AMCAS states that it usually takes ~4-6 weeks for verification to go through, but looking at the verification trend right now here: http://forums.studentdoctor.net/threads/2014-2015-verification-thread.1076112/ I would say you're looking at 3-4 weeks from the time of submission.
Most card issuing banks will remove authorizations within 1â2 days if they are not claimed for settlement.  1 Address Verification System (AVS).  2 Glossary A, AVS.  3 Address Verification Service (AVS) Response Codes | Chase Merchant Services.  4 AVS, CVV2, and payment advice response codes - PayPal Developer.