Hoekstra, Jurriaan; Rutten, Victor P.M.G.; Lam, Theo J.G.M.; Van Kessel, Kok P.M.; Stegeman, J. Arjan; Benedictus, Lindert; Koop, Gerrit(MDPI, 2019-12-12)
Steyn, Jumari; Botha, Elizabeth; Stivaktas, Voula; Buss, Peter Erik; Beechler, Brianna R.; Myburgh, Jan G.; Steyl, Johan Christian Abraham; Williams, June Heather; Venter, Marietjie(Centers for Disease Control and Prevention, 2019-12)