Zach Walsh, UBC Okanagan (IMAGE) University of British Columbia Okanagan campus Caption UBC Okanagan psychology professor Zach Walsh recently published a study examining the roles independent marijuana dispensaries play in cannabis access. Credit UBC Okanagan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.