Spermatozoa.amorphous head:PrThr:Pt:Semen:Ord
spermatozoa.amorphous head:prthr:pt:semen:ord
Spermatozoa.amorphous head:Presence or Threshold:To identify measures at a point in time:Semen:Ordinal
spermatozoa.amorphous head:presence or threshold:to identify measures at a point in time:semen:ordinal