Spermatozoa.progressive^4H post ejaculation:PrThr:Pt:Semen:Ord
spermatozoa.progressive^4h post ejaculation:prthr:pt:semen:ord
Spermatozoa Progressive 4 Hr post ejaculation Ql (Sem)
spermatozoa progressive 4 hr post ejaculation ql (sem)