Comhaire et al in Fertility and Sterility, August, 1997

Box and whisker plot with dots (indicating individual values) showing results of counting latex beads in a concentration of 18 X 10e6/ml Beads in mixture (with spermatozoa), using a plunger-displacement pipette and an improved Neubauer hemocytometer. Range of bead concentration specified by manufacturer.

Box and whisker plot with dots (indicating individual values) showing results of counting latex beads in a concentration of 35 x 10e6/ml Beads diluted in seminal plasma, using a plunger-displacement pipette and an improved Neubauer hemocytometer. Range of bead concentration specified by manufacturer.
Publications
Comparison of Three Sperm-Counting Methods for the Determination of Sperm Concentration in Human Semen and Sperm Suspensions
LabMedicine,
April, 2007
The performance of 10 different methods for the estimation of sperm concentration
Fertility and Sterility,
August, 1997
Accuracy of semen counting chambers as determined by the use of latex beads
Fertility and Sterility,
October, 1996
Semen Analysis in the Clinical Evaluation if Infertility
Mediguide to Urology,
1994