title: Extending the professional memory: four samples of environmental health history.
authors.forename: James
authors.initials: J
authors.lastname: Balsamo
mesh_terms: D023801:Directly Observed Therapy; D004782:Environmental Health / Q000266:history*; D004784:Environmental Monitoring; D049673:History, 20th Century; D006801:Humans; D008460:Meat; D008828:Microbiological Techniques; D009573:Nitrites / Q000032:analysis; D011634:Public Health; D011790:Quarantine; D012499:Sanitation / Q000266:history
chemical_list: D009573:Nitrites