LINC-ROR and polycystic ovary syndrome: When the group of IF was categorized according to the differential diagnosis of infertility, allowing to obtain 6 subgroups of IF (EM, PCOS, AR-ROR, ROR, UI, and GI), it was possible to observe that the various subgroups had specific patterns of alterations in the values of the aforementioned compounds in their FF (Figure 1, panels A–N and Figure 2, panels A–M).