Some of the tissue samples are from patients with endometriosis, then according to eutopic endometrium determinism, whether such selection will cause the research results to be inaccurate？ The sample size is small.
22) Line 189-96. The paragraph describes a result showing that the results are independent of P4. However, the control structure of comparisons is incorrect. The simplest direct comparison would be db-cAMP/P4 vs. db-cAMP to permit the argument the authors are presenting. However, the effects of P4 in the absence of db-cAMP would also require control in cells without db-cAMP, +/- P4. The statistical significance of any result would be evaluated using multivariate analysis.