It came from space.
BeSaw
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D019149:Bioreactors; D002648:Child; D003584:Cytological Techniques; D006353:Heart-Assist Devices; D006801:Humans; D007515:Islets of Langerhans / Q000166:cytology; D010778:Photochemotherapy; D013026:Space Flight; D017216:Telemedicine