Post-Date Pregnancy
- 1757 - CORRON - Durée de la grossesse
- 1764 - CHIROL - Naissances tardives
- 1765 - DuBOURG - Durée de la grossesse
- 1826 - LYALL - Duration of Human Pregnancy
- 1829 - MERRIMAN - Period of Parturition
- 1859 - STONE - Protracted Gestation
- 1886 - ROSSIE - Prolonged Gestation
- 1889 - ACKER - Prolonged Gestation
- 1896 - SPRENKEL - Prolonged Gestation
- 1905 - BLAU - Duration of Pregnancy
- 1907 - ALLEN - Prolonged Gestation
- 1911 - WRIGHT - Prolonged Pregnancy
- 1915 - ROBERTSON - Normal Period of Gestation
- 1922 - BALLANTYNE - Prolongation of Pregnancy
- 1922 - OLIVER - Duration of Human Gestation
- 1926 - NICHOLSON - Prolongation of Pregnancy