|
Resolution: standard / high Figure 1.
Flow diagram of the selection and enrollment of Vitalum participants.
van Keulen et al. BMC Public Health 2008 8:216 doi:10.1186/1471-2458-8-216 |
|
Resolution: standard / high Figure 1.
Flow diagram of the selection and enrollment of Vitalum participants.
van Keulen et al. BMC Public Health 2008 8:216 doi:10.1186/1471-2458-8-216 |
