Lack of a clinically significant interaction of grapefruit juice with ambrisentan and bosentan in healthy adults - Markert, Christoph; Wirsching, Theresia; Hellwig, Regina; Burhenne, Jürgen; Weiß, Johanna; Riedel, Klaus-Dieter; Mikus, Gerd; Haefeli, Walter E. (International journal of clinical pharmacology and therapeutics, 2014)