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Open Access Research article

Preliminary examination of the efficacy and safety of a standardized chamomile extract for chronic primary insomnia: A randomized placebo-controlled pilot study

Suzanna M Zick*, Benjamin D Wright, Ananda Sen and J Todd Arnedt

BMC Complementary and Alternative Medicine 2011, 11:78  doi:10.1186/1472-6882-11-78

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