NW PTTC - Webinar - The More the Merrier? (December 17, 2020) - CCSUA - Clearing the Smoke on Cannabis Friday May 1, 2020 1:09 PM Northwest Prevention Technology Transfer Center (PTTC - NW) Source https://adai.uw.edu/...ent/uploads/2020/11/CCSA-Edible-Cannabis-Extracts2020.pdf Published: Tuesday December 1, 2020 12:57 PM Replications Cannabis Observer Information Set Membership NW PTTC - Webinar - The More the Merrier? (December 17, 2020) - Information Set