http://mh370.mot.gov.my/download/InterimStatement.pdf
In the Interim Statement they state the aim is the prevention of future accidents or incidents. They list seven organisations and details of factual information and evidence gathered. As part of this process they don't mention having gathered the medical records of the crew members. However, in 8.4 they mention they are now going to gather information on crew. Seems a bit strange they have waited so long.