Subject(s)

Abdominal Pain/etiology , Anemia, Hypochromic/etiology , Drug Contamination , Lead Poisoning/diagnosis , Lead/analysis , Opium Dependence/complications , Opium/chemistry , Adult , Anorexia/etiology , Diagnosis, Differential , Erythrocytes/pathology , Fatigue/etiology , Hematologic Tests , Humans , Lead/blood , Lead Poisoning/complications , Male , Porphyrias/diagnosis , Seizures/etiology