Observation:Prid:Pt:Tiss:Nom:Phosphotungstic acid hematoxyl
observation:prid:pt:tiss:nom:phosphotungstic acid hematoxyl
Observation:Presence or Identity:To identify measures at a point in time:Tissue, unspecified:Nominal:Phosphotungstic acid hematoxyl
observation:presence or identity:to identify measures at a point in time:tissue, unspecified:nominal:phosphotungstic acid hematoxyl