Negation detection in Dutch clinical texts: an evaluation of rule-based and machine learning methods. - Bram van Es; Leon C. Reteig; Sander C. Tan; Marijn Schraagen; Myrthe M. Hemker; Sebastiaan R. S. Arends; Miguel A. R. Rios; Saskia Haitjema (BMC Bioinform., 2023)