infertility National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine pregnancy research support non-u.s. gov't female risk factors pregnancy complications / therapy cardiovascular diseases / epidemiology cardiovascular diseases / etiology pregnancy complications / epidemiology consensus development conference consensus neoplasms / therapy female / epidemiology female / etiology* pmid:22153789 doi:10.1016/j.fertnstert.2011.09.024 bart c j m fauser basil c tarlatzis kurt barnhart cardiovascular diseases / therapy female / therapy* metabolic diseases / epidemiology metabolic diseases / etiology metabolic diseases / therapy neoplasms / epidemiology neoplasms / etiology polycystic ovary syndrome / complications* polycystic ovary syndrome / epidemiology polycystic ovary syndrome / therapy* pregnancy complications / etiology