CAMBRIDGE, Mass. – Harvard sophomore Kaavya Viswanathan, 19, blames acid reflux for the numerous and striking similarities between her chick-lit novel, How Opal Mehta Got Kissed, Got Wild and Got a Life, and two books by Megan McCafferty: Sloppy Firsts and Second Helpings. In an interview yesterday at the office of Little, Brown and Company, her publisher, Ms. Viswanathan Read More