Assertion: hetero stroma | /r/ObjectUse | used as medical material
Facets:
Source sentences:
text: The invention belongs to medical material, relate to a kind of corneal stroma, relate in particular to a kind of low antigenic hetero stroma of cornea and preparation method through freezing processing, this hetero stroma of cornea can be used as medical material and is applied to corneal transplantation and cornea refractive surgery.