The responsibility of occupying the front line.
Fabian
Nelson
N
D003140:Communicable Disease Control / Q000592:standards*; D004781:Environmental Exposure / Q000517:prevention & control; D004782:Environmental Health / Q000592:standards*; D006801:Humans; D011361:Professional Competence; D012941:Social Responsibility; D012958:Societies, Scientific; D014481:United States