Multimodal Machine Learning-based Knee Osteoarthritis Progression Prediction from Plain Radiographs and Clinical Data. - Aleksei Tiulpin; Stefan Klein; Sita M. A. Bierma-Zeinstra; Jérôme Thevenot; Esa Rahtu; Joyce van Meurs; Edwin H. G. Oei; Simo Saarakkala (CoRR, 2019)