From: Endometrial claudin-4 and leukemia inhibitory factor are associated with assisted reproduction outcome
CLDN4/LIF categories
Infertility cause
Male factor
Tubal factor
Polycystic
ovary syndrome
Endometriosis
CLDN4+/LIF+
3
2
1
CLDN4-/LIF+
4
9
6
CLDN4+/LIF-
7
CLDN4-/LIF-