This study aims to investigate the reproducibility and relative validity of the Dutch food frequency questionnaire (FFQ), to estimate intake of dietary phylloquinone and menaquinones compared with ...
Objective: To assess the relative validity of a semi-quantitative food frequency questionnaire (SQFFQ) against 28 day weighed diet records (WDRs). Subjects and methods: The SQFFQ was administered to ...
Background Risk factors among overhead athletes have been investigated in many studies. The rotator cuff external rotator weakness is associated with an increased probability of substantial shoulder ...
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