function sfhiv_group_has_studies($ID = false)
{
    $studies = sfhiv_group_get_studies($ID);
    if ($studies->have_posts()) {
        return true;
    }
    return false;
}
function sfhiv_group_page_list_group_studies()
{
    if (!is_singular('sfhiv_group')) {
        return;
    }
    $studies = sfhiv_group_get_studies();
    do_action('sfhiv_loop', $studies, array("id" => "studies", "title" => "Studies", 'show_filters' => false));
}