The brand new NLCS study is actually passed by institutional opinion boards of Maastricht School as well as the Netherlands Business for Used Scientific Search. Most of the cohort users consented to participation of the finishing a sent, self-applied survey.

Tap water hardness data. Data regarding calcium and magnesium concentrations in tap water were obtained in 1986 from all 364 pumping stations in the Netherlands (VEWIN 1986). This information was combined with information about the distribution of tap water that was collected from the waterworks in the country. Continua a leggere