Adults with Plasmodium falciparum malaria have higher magnitude and quality of circulating T-follicular helper cells compared to children by Oyong, DA, Loughland, JR, Soon, MSF, Chan, J-A, Andrew, D, Wines, BD, Hogarth, PM, Olver, SD, Collinge, AD, Varelias, A, Beeson, JG, Kenangalem, E, Price, RN, Anstey, NM, Minigo, G, Boyle, MJ