UMass Chan Medical School and Davis Advertising are collaborating to promote the 25th anniversary of the UMass Cancer Walk. Davis is offering services on a pro bono basis to help UMass Cancer Walk organizers achieve a record fundraising year. The UMass Cancer Walk is the largest, one-day, single-location fundraising event in the area. This year’s event takes place on Sept. 24 at Polar Park and features a superhero theme. Davis Advertising is providing videography, event photo and video coverage, social media support, and other services as needed.