title: A pilot study of vitamin B12 in the treatment of tiredness.
mesh_terms: D001066:Appetite / Q000187:drug effects; D002986:Clinical Trials as Topic; D005221:Fatigue / Q000188:drug therapy*; D005260:Female; D006240:Happiness; D006454:Hemoglobins; D006801:Humans; D006879:Hydroxocobalamin / Q000627:therapeutic use; D007273:Injections, Intramuscular; D008297:Male; D010865:Pilot Projects; D010919:Placebos; D012890:Sleep / Q000187:drug effects; D014805:Vitamin B 12 / Q000627:therapeutic use*
chemical_list: D006454:Hemoglobins; D010919:Placebos; D014805:Vitamin B 12; D006879:Hydroxocobalamin