"Dr Paul Offit is a well-known vaccine advocate and doctor at the Childrens Hospital of Philadelphia (CHOP), where he is director of the Vaccine Information Center. The rotavirus vaccine he developed made Offit very rich. He vigorously defends vaccines in the media, often with half-truths and outright lies." http://vaccinepapers.org/dr-paul-offits-aluminum-deceptions-academic-misconduct/