title: Fatigue in FB-111 crewmembers.
mesh_terms: D015065:17-Hydroxycorticosteroids / Q000652:urine; D000337:Aerospace Medicine; D004526:Efficiency; D004837:Epinephrine / Q000652:urine; D005221:Fatigue; D006801:Humans; D008297:Male; D009638:Norepinephrine / Q000652:urine; D011188:Potassium / Q000652:urine; D012890:Sleep; D012964:Sodium / Q000652:urine; D013997:Time Factors; D014481:United States; D014508:Urea / Q000652:urine
chemical_list: D015065:17-Hydroxycorticosteroids; D014508:Urea; D012964:Sodium; D011188:Potassium; D009638:Norepinephrine; D004837:Epinephrine