The statewide surveillance for cervical screening provides the solid foundations for the policies driven in HPV prevention for US population. The data maintained here are with the highest quality that Ruofei has ever seen. It’s like a big and clean seawater for a surfer to explore. Ruofei is contributing in the statistical analysis for the HPV studies, and meanwhile trying to find/develop more useful statistical tools in this field. Outside of work, he enjoys spending time with family, watching and playing soccer games, and dreaming one day to solve statistical questions with his son together (he is 6 years old now).