Rebordão, M. A., Rodrigues, R., Avillez, T., Nogueira, F., & Meirinho, M. (1997). Stimulation of maternal thyroid activity and hyperemesis gravidarum. Role of human chorionic gonadotrophin. Acta Médica Portuguesa, 10(10), 677–9. https://doi.org/10.20344/amp.2471