Border health and physicians.
Cardarelli
R
R
Herron
K
K
D003140:Communicable Disease Control; D018563:Disease Notification; D004641:Emigration and Immigration; D006801:Humans; D008800:Mexico / Q000208:ethnology; D010819:Physician's Role; D011159:Population Surveillance; D013781:Texas / Q000453:epidemiology