Figure 4From: Effect of a povidone-iodine intrauterine infusion on progesterone levels and endometrial steroid receptor expression in maresPercentage of positive cells of estrogen receptor α (ERα; left panel) and progesterone receptor (PR; right panel) in control and infused mares on days 6 (open bars) and 15 (solid bars) post ovulation. Bars with different superscripts within the same graph differ: a, b P < 0.05.Back to article page