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Register a new participant:
https://www.youtube.com/watch?v=YkieQvsiOu8
Register an existing participant:
https://www.youtube.com/watch?v=b1FkCsrLni0
Register multiple participants (family)
https://www.youtube.com/watch?v=jnifI26huQs
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https://www.youtube.com/watch?v=YkieQvsiOu8
https://www.youtube.com/watch?v=b1FkCsrLni0
https://www.youtube.com/watch?v=jnifI26huQs
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