At the bottom of:
http://schema.org/MedicalOrganization

We find this:

More specific Types available in extensions

• DiagnosticLab
• MedicalClinic
• VeterinaryCare

As per the links above these point to:
http://health-lifesci.3-2e.schemaorgae.appspot.com

Not to, as they should:
http://health-lifesci.schema.org

Here are all the pages I could find (via a crawl) that link to URLs starting with:
http://health-lifesci.3-2e.schemaorgae.appspot.com
Or:
https://health-lifesci.3-2e.schemaorgae.appspot.com

http://attic.schema.org/MedicalOrganization
http://auto.schema.org/MedicalOrganization
http://bib.schema.org/MedicalOrganization
http://health-lifesci.schema.org/availableChannel
http://health-lifesci.schema.org/HowToDirection
http://health-lifesci.schema.org/LodgingBusiness
http://health-lifesci.schema.org/MedicalOrganization
http://health-lifesci.schema.org/MedicalTestPanel
http://health-lifesci.schema.org/MultiPlayer
http://health-lifesci.schema.org/OfflineTemporarily
http://health-lifesci.schema.org/PaymentDeclined
http://health-lifesci.schema.org/ReservationHold
http://health-lifesci.schema.org/ZoneBoardingPolicy
http://pending.schema.org/MedicalOrganization
http://schema.org/MedicalOrganization
https://auto.schema.org/MedicalOrganization
https://bib.schema.org/MedicalOrganization
https://health-lifesci.schema.org/availableChannel
https://health-lifesci.schema.org/LodgingBusiness
https://health-lifesci.schema.org/MedicalOrganization
https://health-lifesci.schema.org/MedicalTestPanel
https://health-lifesci.schema.org/OfflineTemporarily
https://health-lifesci.schema.org/PaymentDeclined
https://health-lifesci.schema.org/ReservationHold
https://health-lifesci.schema.org/ZoneBoardingPolicy
https://iot.schema.org/MedicalOrganization
https://meta.schema.org/MedicalOrganization
https://schema.org/MedicalOrganization