Clinical Research Directory

Inclusion Criteria: * Women with uncomplicated normal term pregnancy undergoing elective cesarean section for previous uterine surgery or breech presentation of the fetus; * Patients with retained abortion and history of recurrent abortion sine causa at the end of the work-up of investigations performed according to ESHRE guidelines, undergoing revision of the uterine cavity; * Patients diagnosed with preeclampsia, defined in accordance with the definitions of ISSHP, undergoing cesarean section; * Patients with preterm onset, before 37 weeks gestational age, of spontaneous labor, undergoing cesarean section in labor for low weight or abnormal fetal presentation. Exclusion Criteria: * Age \<18 years; * Chronic infection with HIV or HCV; * Ongoing malignant neoplasms; * Multiple pregnancies; * Inability to provide informed informed consent.