Error message

Deprecated function: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in Drupal\Core\Url::fromUri() (line 281 of core/lib/Drupal/Core/Url.php).

Drupal\Core\Url::fromUri() (Line: 177)
Drupal\search_api_solr\Plugin\search_api\datasource\SolrDocument->getItemUrl() (Line: 1429)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItemUrl() (Line: 1284)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItems() (Line: 1195)
Drupal\views\Plugin\views\field\FieldPluginBase->advancedRender() (Line: 238)
template_preprocess_views_view_field()
call_user_func_array() (Line: 261)
Drupal\Core\Theme\ThemeManager->render() (Line: 490)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 1796)
Drupal\views\Plugin\views\field\FieldPluginBase->theme() (Line: 769)
Drupal\views\Plugin\views\style\StylePluginBase->elementPreRenderRow()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 708)
Drupal\views\Plugin\views\style\StylePluginBase->renderFields() (Line: 574)
Drupal\views\Plugin\views\style\StylePluginBase->renderGrouping() (Line: 462)
Drupal\views\Plugin\views\style\StylePluginBase->render() (Line: 2177)
Drupal\views\Plugin\views\display\DisplayPluginBase->render() (Line: 1593)
Drupal\views\ViewExecutable->render() (Line: 201)
Drupal\views\Plugin\views\display\Page->execute() (Line: 1690)
Drupal\views\ViewExecutable->executeDisplay() (Line: 81)
Drupal\views\Element\View::preRenderViewElement()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 238)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 231)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 201)
Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138)
Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Deprecated function: parse_url(): Passing null to parameter #1 ($url) of type string is deprecated in Drupal\Core\Url::fromUri() (line 284 of core/lib/Drupal/Core/Url.php).

Drupal\Core\Url::fromUri() (Line: 177)
Drupal\search_api_solr\Plugin\search_api\datasource\SolrDocument->getItemUrl() (Line: 1429)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItemUrl() (Line: 1284)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItems() (Line: 1195)
Drupal\views\Plugin\views\field\FieldPluginBase->advancedRender() (Line: 238)
template_preprocess_views_view_field()
call_user_func_array() (Line: 261)
Drupal\Core\Theme\ThemeManager->render() (Line: 490)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 1796)
Drupal\views\Plugin\views\field\FieldPluginBase->theme() (Line: 769)
Drupal\views\Plugin\views\style\StylePluginBase->elementPreRenderRow()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 708)
Drupal\views\Plugin\views\style\StylePluginBase->renderFields() (Line: 574)
Drupal\views\Plugin\views\style\StylePluginBase->renderGrouping() (Line: 462)
Drupal\views\Plugin\views\style\StylePluginBase->render() (Line: 2177)
Drupal\views\Plugin\views\display\DisplayPluginBase->render() (Line: 1593)
Drupal\views\ViewExecutable->render() (Line: 201)
Drupal\views\Plugin\views\display\Page->execute() (Line: 1690)
Drupal\views\ViewExecutable->executeDisplay() (Line: 81)
Drupal\views\Element\View::preRenderViewElement()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 238)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 231)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 201)
Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138)
Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Deprecated function: str_starts_with(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\Url::fromUri() (line 289 of core/lib/Drupal/Core/Url.php).

Drupal\Core\Url::fromUri() (Line: 177)
Drupal\search_api_solr\Plugin\search_api\datasource\SolrDocument->getItemUrl() (Line: 1429)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItemUrl() (Line: 1284)
Drupal\search_api\Plugin\views\field\SearchApiNumeric->getItems() (Line: 1195)
Drupal\views\Plugin\views\field\FieldPluginBase->advancedRender() (Line: 238)
template_preprocess_views_view_field()
call_user_func_array() (Line: 261)
Drupal\Core\Theme\ThemeManager->render() (Line: 490)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 1796)
Drupal\views\Plugin\views\field\FieldPluginBase->theme() (Line: 769)
Drupal\views\Plugin\views\style\StylePluginBase->elementPreRenderRow()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 708)
Drupal\views\Plugin\views\style\StylePluginBase->renderFields() (Line: 574)
Drupal\views\Plugin\views\style\StylePluginBase->renderGrouping() (Line: 462)
Drupal\views\Plugin\views\style\StylePluginBase->render() (Line: 2177)
Drupal\views\Plugin\views\display\DisplayPluginBase->render() (Line: 1593)
Drupal\views\ViewExecutable->render() (Line: 201)
Drupal\views\Plugin\views\display\Page->execute() (Line: 1690)
Drupal\views\ViewExecutable->executeDisplay() (Line: 81)
Drupal\views\Element\View::preRenderViewElement()
call_user_func_array() (Line: 113)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 886)
Drupal\Core\Render\Renderer->doCallback() (Line: 431)
Drupal\Core\Render\Renderer->doRender() (Line: 248)
Drupal\Core\Render\Renderer->render() (Line: 238)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 231)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 201)
Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 138)
Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 87)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Dr. Michael Douglas Hill

Calgary, Alberta, Canada

Order of Canada

Officer of the Order of Canada
Awarded on: 2022-11-09
Invested on: 2025-06-25
Michael Douglas Hill, O.C. Calgary, Alberta Michael Hill has changed the landscape of acute stroke care. Professor and researcher at the University of Calgary and the Hotchkiss Brain Institute, he is considered one of the world’s leading stroke clinical trialists. He has significantly contributed to identifying and implementing best practices for stroke care, as well as new standards of care globally, which has helped make Canada a leader in this field. Furthermore, multiple organizations have benefited from his leadership, including the Heart and Stroke Foundation of Canada, the Canadian Neurological Sciences Federation, and the former Canadian Stroke Network.

The Governor General of Canada

Her Excellency the Right Honourable Mary Simon

The Governor General of Canada

Error message

Dr. Michael Douglas Hill

Order of Canada

Officer of the Order of Canada