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After registering and obtaining a password, you may browse, download, and use the data for human subjects research for scientific and educational purposes. If you already have access, log in here:

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To obtain access to OAI data you will need an NDA user account. Account can be requested directly from the NIMH Data Archive (NDA) website.

Common frontal plane lower limb alignment patterns. Left: Full limb radiograph for alignment analysis. Neutral alignment. Center: Full limb radiograph for alignment analysis. Slightly valgus alignment. Right: Full limb radiograph for alignment analysis. Slightly varus alignment.