A couple dozen activists demonstrated in front of the University of California San Francisco Medical Center to demand the end of experimentation on animals at the Center's research labs. The action, which included a "die-in," was the sixth in a series of protests that the activists have held once a month since World Week for Animals in Laboratories in April. They say they will continue to convene their monthly rallies until UCSF ends all animal testing. Laura Garzon Chica reports.