https://webresources.gu.se/RSS_Services/Calendar_dynamic_RSS?categoryNames=&calendarIds=2121&fromSiteNodeId=104804&tipFriend=true&tipUrl=http%3A%2F%2Fsahlgrenska.gu.se%2Fforskning%2Faktuellt%2Fkalendarium%2F%3FsiteNodeId%3D104804%26languageId%3D100000%26calendarMonth%3D2019-07&languageId=100000&calendarMonth=2019-07 The top 25 events