Vitamin D supplementation did not prevent influenza-like illness as diagnosed retrospectively by questionnaires in subjects participating in randomized clinical trials
在随机临床试验中，维生素D补充剂并未预防受试者通过问卷调查回顾性诊断出的流感样疾病。
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doi:10.3109/00365548.2011.621446
Jorde, Rolf; Witham, Miles; Janssens, Wim; Rolighed, Lars; Borchhardt, Kyra; de Boer, Ian H; Grimnes, Guri; Hutchinson, Moira S
