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Figure 1 | Environmental Health

Figure 1

From: End-stage renal disease and low level exposure to lead, cadmium and mercury; a population-based, prospective nested case-referent study in Sweden

Figure 1

Time period of recruitment and blood sampling within the Malmö Diet and Cancer study and The Northern Sweden Health and Disease study, from which participants for the present study were selected. The identities of the participants were linked to the Swedish Renal Registry for identification of end-stage renal disease cases who had donated a blood sample in any of the cohort studies. Vertical lines indicate beginning and end of cohort recruitment, and arrows indicate that recruitment is still continuing.

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