I have a dependent work permit.. my kids study permit and my visa will expire in April 2021.. I did the medical in oct 2019 and was not able to travel to Canada due to lockdown.. now I plan to rejoin with my husband and look for a job there.. I need a clarification whether I have to redo the medical again as I have not travelled after stamping.. in many forums they say medical exam is valid only for 12 months.. please help