['polycystic ovarian syndrome', 'infertility']
['d-chiro-inositol', 'myoinositol']

        Inclusion Criteria:

          -  Being diagnosed with PCOS according to Rotterdam criteria.

          -  Being in in vitro fertilization treatment.

          -  Body mass index less than 30 kg/m2.

          -  Accept freely to participate in the study and sign the informed consent document.

        Exclusion Criteria:

          -  Contraindication to perform techniques of assisted reproduction or stimulation of
             ovulation.

          -  Advanced state of endometriosis (III or IV).

          -  Classified as poor responder in fertility treatment.

          -  Premature ovarian failure.

          -  Severe male factor (cryptozoospermia).

          -  Few expectations of compliance and/or collaboration.
      