There are many publications about pregnancy and childbirth. When you check out the links, you will find that currently publications about pregnancy are very much dominated with the Zika virus and for childbirth Mr G. Justus Hofmeyr is mentioned as one of the authors important for the subject.
Mr Homeyr is mentioned only because the Cochrane Pocketbook "Pregnancy and Childbirth" was included by hand. This book is quite significant because it represents the best evidence for doctors and other medical professionals who provide maternity care.
As more structure is given to publications, it becomes more useful; publications will gain authors all known individually to Wikidata. The citations of publications will be mapped and publications of Cochrane will bring out what publications truly add to the sum of all knowledge.