Cell type specific regulation of EP1, EP2 and EP3 by estradiol and progesterone. Results from manual scoring of EP1 (stroma and myometrium), EP2 (myometrium) and EP3 (glandular epithelium (GE), stroma and myometrium) when treated with estradiol (E), progesterone (P), or combinations for 24 (E or P) and 48 hours (EE, PP, EP or PE). Box and whisker plots representing the median value with 50% of all data falling within the box. The whiskers extend to the 5th and 95th percentiles. Values with different letter designations are significantly different (P < 0.05).