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Neidhart, W.; Breu, V.; Bur, D.; Burri, K.; Clozel, M.; Hirth, G.; Müller, M.; Wessel, H. P.; Ramuz, H. The Discovery of Nonpeptide Endothelin Receptor Antagonists. Progression towards Bosentan. Chimia 1996, 50 (11), 519. https://doi.org/10.2533/chimia.1996.519.