What Makes February 19 Special?

Shamrock Shakes become available at McDonald's. You can only get the famous green shakes through March 20, so hurry! What do milkshakes have to do with women in medicine or with children with cancer? Find out in Chapter 20 of "Audrey Evans: Not Your Ordinary Doctor." The milkshake Joyeeta Neogi drew for the book looks good enough to drink!