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  Indian J Med Microbiol
 

Figure 4: Percentages of rapidly progressive human spermatozoa from three PureSperm fractions (Fractions 1 to 3 = 40%, 60% and 80% respectively) compared when incubated with increasing concentrations of caffeine; Treatment 1 = control; Treatments 2-4 increasing concentrations of caffeine from 2 to 10 mmol l-1.51

Figure 4: Percentages of rapidly progressive human spermatozoa from three PureSperm fractions (Fractions 1 to 3 = 40%, 60% and 80% respectively) compared when incubated with increasing concentrations of caffeine; Treatment 1 = control; Treatments 2-4 increasing concentrations of caffeine from 2 to 10 mmol l-1.51