Analysis of information sources in references of the Wikipedia article "Nail salon" in English language version.
They come in usually with breathing problems, some symptoms similar to an allergy, and also asthma symptoms — they cannot breathe," he said during a break between patients this winter. "Judging from the symptoms with these women, it seems that they are either smokers, secondhand smokers or asthma patients, but they are none of the above. They work for nail salons.