VWF collagen (types III and VI)‐binding defects in a cohort of type 2M VWD patients – a strategy for improvement of a challenging diagnosis. Issue 2 (12th January 2017) - Fidalgo, T.; Oliveira, A.; Silva Pinto, C.; Martinho, P.; Ferreira, G.; Salvado, R.; Sevivas, T.; Catarino, C.; Ribeiro, M. L.