add webpage URL and access date to BJC based on info provided by publ…

…isher via https://forums.zotero.org/discussion/35137/edited-version-of-british-journal-of-cancer/#Item_8

british-journal-of-cancer.csl

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<style xmlns="http://purl.org/net/xbiblio/csl" version="1.0" class="in-text" default-locale="en-US" demote-non-dropping-particle="sort-only" page-range-format="expanded">
+<style xmlns="http://purl.org/net/xbiblio/csl" version="1.0" class="in-text" default-locale="en-GB" demote-non-dropping-particle="sort-only" page-range-format="expanded">
   <info>
     <title>British Journal of Cancer</title>
     <title-short>BJC</title-short>
@@ -70,6 +70,17 @@
       <text variable="DOI"/>
     </group>
   </macro>
+  <macro name="accessed">
+    <choose>
+      <if type="webpage">
+        <text variable="URL"/>
+        <group delimiter=": " prefix=" (" suffix=")">
+          <text term="accessed"/>
+          <date variable="accessed" form="numeric"/>
+        </group>
+      </if>
+    </choose>
+  </macro>
   <citation et-al-min="3" et-al-use-first="1" disambiguate-add-year-suffix="true" collapse="year">
     <sort>
       <key macro="issued"/>
@@ -116,6 +127,7 @@
           <else>
             <text variable="title"/>
             <text macro="publisher"/>
+            <text macro="accessed"/>
           </else>
         </choose>
       </group>