This manual from the Bureau of Laboratories at the Michigan Department of Health and Human Services was designed to assist in the proper collection and submission of specimens for genetic testing and the interpretation of results.
Link to resource:
http://www.michigan.gov/mdch/0,1607,7-132-2945_5103-15158--,00.html
http://www.michigan.gov/mdch/0,1607,7-132-2945_5103-15158--,00.html