title: [Ultrasonic echography and steroid hormone determination in diagnosing infertility of unexplained origin].
mesh_terms: D000328:Adult; D000858:Anovulation / Q000175:diagnosis; D004967:Estrogens / Q000652:urine*; D005260:Female; D005498:Follicular Phase; D006801:Humans; D007247:Infertility, Female / Q000175:diagnosis* / Q000209:etiology; D007986:Luteinizing Hormone / Q000097:blood; D010060:Ovulation; D013577:Syndrome; D014463:Ultrasonography
chemical_list: D004967:Estrogens; D007986:Luteinizing Hormone
vernacular_title: Ul'trazvukovaia ékhografiia i opredelenie steroidnykh gormonov v diagnostike besplodiia "neutochnennogo" geneza.