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1 janv. 1911 - First Local Health Departments
Description:
The first counties to establish health departments were Guilford County in North Carolina and Yakitna County in Washington.
Ajouté au bande de temps:
4 oct. 2017
0
0
1187
History of Health Education
Date:
1 janv. 1911
Maintenaint
~ Il y a 113 ans