Afghanistan   2 studies
Albania   2 studies
Algeria   8 studies
American Samoa   2 studies
Andorra   2 studies
Angola   1 study
Argentina   785 studies
Armenia   1 study
Australia   1993 studies
    Australia, Australian Capital Territory   63 studies
    Australia, New South Wales   841 studies
    Australia, Northern Territory   11 studies
    Australia, Queensland   551 studies
    Australia, South Australia   492 studies
    Australia, Tasmania   78 studies
    Australia, Victoria   923 studies
    Australia, Western Australia   529 studies
Austria   1248 studies