Eherer, AJ; Schwetz, I; Hammer, HF; Weber, K; Petnehazy, T; Krejs, GJ.
Effect of Sildenafil on esophageal motor function in healthy subjects and patients with non-cardiac chest pain.
GASTROENTEROLOGY 2000 118: A626-A627.
Doi: 10.1016/S0016-5085(00)84645-4
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