Reyburn, Rita, Tuivaga, Evelyn June, Ratu, Felisita Tupou, Young, Seruwaia, Garland, Suzanne Marie, Murray, Gerald, Cornall, Alyssa, Tabrizi, Sepehr, Nguyen, Cattram D and Jenkins, Kylie A Single Dose of Quadrivalent HPV Vaccine is Highly Effective Against HPV Genotypes 16 and 18 Detection in Young Pregnant Women Eight Years Following Vaccination: An Observational Study in Fiji.