<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Els Duysburgh</style></author><author><style face="normal" font="default" size="100%">Laure Mortgat</style></author><author><style face="normal" font="default" size="100%">Cyril Barbezange</style></author><author><style face="normal" font="default" size="100%">Katelijne Dierick</style></author><author><style face="normal" font="default" size="100%">Nathalie Fischer</style></author><author><style face="normal" font="default" size="100%">Heyndrickx, Leo</style></author><author><style face="normal" font="default" size="100%">Veronik Hutse</style></author><author><style face="normal" font="default" size="100%">Isabelle Thomas</style></author><author><style face="normal" font="default" size="100%">Steven Van Gucht</style></author><author><style face="normal" font="default" size="100%">Vuylsteke, Bea</style></author><author><style face="normal" font="default" size="100%">Ariën, Kevin K</style></author><author><style face="normal" font="default" size="100%">I Desombere</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Persistence of IgG response to SARS-CoV-2</style></title><secondary-title><style face="normal" font="default" size="100%">The Lancet Infectious Diseases</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jan-02-2021</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">21</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">2</style></issue></record></records></xml>