title: Further studies on biochemical active substances in urine, increasing with fatigue due to physical exercise.
mesh_terms: D000818:Animals; D001001:Anura; D005221:Fatigue / Q000652:urine*; D006801:Humans; D008297:Male; D005082:Physical Exertion; D014556:Urine / Q000032:analysis* / Q000502:physiology