Put the sealed biohazard bag into the return shipping bag, and seal it. Drop your sample at a USPS mailbox or post office. Samples should be put in a mailbox within 24 hours of collection.
Put the sealed biohazard bag into the return shipping bag, and seal it. Drop your sample at a USPS mailbox or post office. Samples should be put in a mailbox within 24 hours of collection.