Trachoma and immigration.
Aronson
S M
SM
D004641:Emigration and Immigration / Q000266:history*; D005060:Europe; D006115:Greece; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D007557:Israel; D012384:Rome; D014141:Trachoma / Q000453:epidemiology / Q000266:history*; D014481:United States