Esther Mossel, Martha S van Ginkel, Erlin A Haacke, Suzanne Arends, Silvia C Liefers, Konstantina Delli, Jolien F van Nimwegen, Alja J Stel, Fred K L Spijkervet, Arjan Vissink, Bert van der Vegt, Frans G M Kroese, Hendrika Bootsma, Histopathology, salivary flow and ultrasonography of the parotid gland: three complementary measurements in primary Sjögren’s syndrome, Rheumatology, 2021;, keab781, https://doi.org/10.1093/rheumatology/keab781