Observation:Prid:Pt:Tiss:Nom:Hematoxylin and eosin stain
observation:prid:pt:tiss:nom:hematoxylin and eosin stain
Observation:Prid:Pt:Tiss:Nom:Hematoxylin and eosin stain
observation:prid:pt:tiss:nom:hematoxylin and eosin stain