An Interactive Annotated World Bibliography of Printed and Digital Works in the History of Medicine and the Life Sciences from Circa 2000 BCE to 2022 by Fielding H. Garrison (1870-1935), Leslie T. Morton (1907-2004), and Jeremy M. Norman (1945- ) Traditionally Known as “Garrison-Morton”

15961 entries, 13944 authors and 1935 subjects. Updated: March 22, 2024

PENROSE, Lionel Sharples

2 entries
  • 4962.1

A clinical and genetic study of 1,280 cases of mental defect.

Spec. Rep. Ser. Med. Res. Coun. (Lond), No. 229, 1938.

In this exhaustive study Penrose showed (p. 36) the significance of maternal age in the etiology of Down syndrome.



Subjects: GENETICS / HEREDITY › HEREDITARY / CONGENITAL DISEASES OR DISORDERS › Down Syndrome, OBSTETRICS & GYNECOLOGY › OBSTETRICS
  • 4962.2

The biology of mental defect.

London: Sidgwick & Jackson, 1949.


Subjects: GENETICS / HEREDITY › GENETIC DISORDERS, PSYCHIATRY