Danish PhD students enrolled at either Aarhus University, Aalborg University, or University of Southern Denmark can free of charge participate in PhD courses held by any of the other two universities. Because the three universities’ not necessarily send e-mails to students enrolled at another other university, you should yourself stay informed about any changes regarding the attending course. The links below take you to overviews over the three universities’ PhD courses.
Aarhus University: https://phd.health.au.dk/doingaphd/phdcourses/
Aalborg University: https://phd.moodle.aau.dk/
University of Southern Denmark: https://www.sdu.dk/en/forskning/phd/phd_skoler/phdskolensundhedsvidenskab/phd_students/phd_courses
A full list of all Danish PhD courses can be found at: https://phdcourses.dk/