Dr Ronald Vender, Associate Clinical Professor, Division of Dermatology, Department of Medicine, McMaster University, Hamilton, Ontario and Founder and Director of Dermatrials Research Inc. bh IN BRIEF In addition to teaching at McMaster University, Dr. Ron Vender is a dermatologist who currently practices in Hamilton, Ontario, and is the founder and director of Dermatrials Research … Continue reading Doctor on Call : Psoriasis