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ADL XAPI verbs: http://adlnet.gov/expapi/verbs (BROKEN)
Activity Stream verbs: http://activitystrea.ms/head/activity-schema.html#verbs
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Virtual patient recipe: https://registry.tincanapi.com/#profile/50
Virtual patient recipe on google docs:
https://docs.google.com/document/d/1jOzZE1U2cVnzTrsy1K-Qs1PRZ-KI7sbhdRvmh2NucrM/edit?usp=sharing