As you suggested, we should have presented the data in the same graph. However, the two experiments were performed independently. Therefore, we were not able to combine the results in the graph. Because treatment with P4 alone could not induce decidualization in the experiments, we examined the effect of PGRMC1 knockdown and inhibition on db-cAMP-induced decidualization. Further study would be needed to determine whether PGRMC1 is involved in the P4 action in endometrium.
The methods could describe that all subjects were ethnically Japanese/Asian (or otherwise).