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Open Imaging Index
LicenseRef-L-CID-Data-Access ยท custom agreement

Leiden-CID (L-CID) data access procedure

Access for bona fide researchers doing non-commercial, publicly funded research. A data request form is reviewed by the Research Data Access Committee, then a data sharing agreement is signed. Users share a publication package within one month of publishing, and access is revoked two months after publication. The agreement text itself is not published.

Original license text Edit Purpose: Approved project only Version read: (Meta) data access page of the Leiden-CID study, read 2026-10-11; the data sharing protocol, request form and data sharing agreement templates are announced as coming soon Checked 2026-10-11
GA4GH DUO: PSNCURTNTS

Our reading of the license, not legal advice. Before you use the data, read the original license and confirm that your use is allowed. We take no responsibility for how you use a dataset. Full disclaimer

In your favor With conditions Restricts you Not stated in the text

What you can do

  • No
  • Not stated
  • Train ML models Not stated
  • Create derived data Not stated
  • Yes

What you can share

  • Not stated
  • Not stated
  • Share trained models Not stated

What you must do

  • Not stated
  • Share alike Not stated
  • Yes
  • Conditional
  • No
  • Conditional
  • Yes
  • Yes

Limits

  • No re-identification Not stated
  • Conditional

Separate commercial license: Not stated

Datasets under this license

  • L-CID

    Brain MRI of same-sex twins in childhood and early adolescence, collected in a longitudinal twin study with a parenting intervention to trace how social competence and behavioral control develop. Structural, diffusion, resting-state and task fMRI at ages 7 to 15 in the Netherlands.