Can ultrasound of the major salivary glands assess histopathological changes induced by treatment with rituximab in primary Sjögren's syndrome?. Issue 4 (11th April 2019) - Mossel, Esther; Delli, Konstantina; Arends, Suzanne; Haacke, Erlin A; van der Vegt, Bert; van Nimwegen, Jolien F; Stel, Alja J; Spijkervet, Fred K L; Vissink, Arjan; Kroese, Frans G M; Bootsma, Hendrika