https://pdk1signal.com/index.p....hp/pyclen-based-liga
Metalworkers, working 20 years within the factory, much more often had skin symptoms. Contact with chemical substances at the office was suspected as the key provoking skin signs. Metalworkers were sensitized mainly to cobalt, and nickel was the essential prevalent allergen among office staff. Younger metalworkers more often had skin symptoms suspected of being work-related in comparison to older ones. Sensitization to cobalt was more frequent in the metalworkers