Observation:Prid:Pt:Bld/Bone mar:Nom:Chloracetate esterase stain
observation:prid:pt:bld/bone mar:nom:chloracetate esterase stain
Observation:Prid:Pt:Bld/Bone mar:Nom:Chloracetate esterase stain
observation:prid:pt:bld/bone mar:nom:chloracetate esterase stain