| Secondary |
| Simonsson |
| 1985 |
| Sweden |
| LMW |
| Metals |
| Aluminum |
| Aluminum fluoride factory workers |
| Asthmatic symptoms (nocturnal wheezing, breathlessness, reversible airways obstruction) |
| Removal from exposure (mean 41 months) |
| 19 subjects successively referred to department of lung medicine (Participation rate: 100%) |
| Airway hyperreactivity did not change significantly for 11of 19 subjects after period of non-exposure. The airway hyperreactivity also did not significantly change for six subjects who were continuously exposed for 48 months. |
