2) Okayasu H, Sein C, Hamidi A, Bakker WA, Sutter RW. Development of inactivated poliovirus vaccine from Sabin strains: A progress report. Biologicals 44:581-587, 2016.
5) van der Marel P, Hazendonk TG, Henneke MA, van Wezel AL. Induction of neutralizing antibodies by poliovirus capsid polypeptides VP1, VP2 and VP3. Vaccine 1:17-22, 1983.