Different immune responses in different parts of the cycle.
Check
J H
JH
Kiefer
D G
DG
Lamborne
N M
NM
D000328:Adult; D005260:Female; D006801:Humans; D008597:Menstrual Cycle / Q000276:immunology*; D011247:Pregnancy; D011374:Progesterone / Q000276:immunology*; D018417:Th1 Cells / Q000276:immunology; D018418:Th2 Cells / Q000276:immunology*
D011374:Progesterone