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Boxplots of the CV of pretest, training, and examination measurements for each parameter, during 4-day ESHRE basic semen analysis courses (19 courses with 15 participants each). Pretest: results on day 1 of the course before any training; training: results during the training session; exam: results on the last day of the course during the examination; CV: coefficient of variation; ESHRE: the European Society of Human Reproduction and Embryology.
