The effect of calcium on the secretion of factor VIII-related antigen by cultured human endothelial cells - Loesberg, C; Gonsalves, M D; Zandbergen, J; Willems, C; Aken, W Gv; Stel, H V; Mourik, J Av; Groot, P Gd (Biochim Biophys Acta, 1983)