1. Amazingly large number of bronchial cancers occurring among those working with chromium;Alwens;Arch. Gewerbepath. Gewerbehyg.,1936
2. Pulmonary cancer in workers handling chromium;Alwens;Acta Union Int. Contre Cancer,1938
3. Pulmonary carcinoma in chromate workers; review of literature and report of cases;Baetjer;Arch. Industr. Hyg. Occup. Med.,1950
4. The distribution and retention of chromium in men and animals;Baetjer;AMA Arch. Industr. Health,1959