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The aim of this prospective study of the use of transvaginal power Doppler ultrasound was to assess the subjectivity of the grading system and to elucidate, on a much larger series (200) of treatment(More)
This was a prospective observational study to evaluate the effect of controlled ovarian hyperstimulation on follicular vascularity. A subjective grading system was applied to assess vascularity using(More)