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The article informs that trials of a male contraceptive in Great Britain are being hampered by a lack of male volunteers. In contrast, here's a study likely to encourage plenty of volunteers— flavanol-rich cocoa induces nitricoxide-dependent vasodilation in healthy humans. The article further informs that the paper on the impact of erectile dysfunction and its treatment with sildenafil, published in the "British Medical Journal," contains some bizarre quotes from patients.