Without a control group, this information is little more than a hunch - and the article clearly states so immediately after. While I'd like to see this angle i

Without a control group, this information is little more than a hunch - and the article clearly states so immediately after. While I'd like to see this angle investigated, pretending that this is a conclusion is not really useful. That area has also been used for testing multiple chemical agents with dubious health effects in the past.