sections 2.4 and 3.6. There were biopsies, chemical checks and correlation with the serum levels of hormones.
Nothing on pH, other than the vague reference to 'neither inflammatory or reactive'; nothing to correlate whether mucosal viscosity could prevent uptake of fluid by the embryo at the stage when building up inner fluid is crucial to development just prior to implantation. I will await further studies to clarify these issues. Thanks for posting the study, m'Lady.