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Crossover designs versus parallel studies in infertility research.

E R te Velde·B J Cohlen·C W Looman·J D Habbema
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Cross-Over StudiesFemaleHumansInfertility, FemaleResearch DesignCommentComparative StudyLetter

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E R te Velde, B J Cohlen, C W Looman, J D Habbema. 1998. Crossover designs versus parallel studies in infertility research.. https://doi.org/10.1016/s0015-0282(97)00491-3

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[Restless legs due to ingestion of 'light' beverages containing saccharine; results of an N-of-1 trial].

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