Observation:Prid:Pt:Tiss:Nom:Esterase stain.non-specific
observation:prid:pt:tiss:nom:esterase stain.non-specific
Observation:Prid:Pt:Tiss:Nom:Esterase stain.non-specific
observation:prid:pt:tiss:nom:esterase stain.non-specific