I want to know the answer to the following question:
How many months of washing did a 1999 study look at?
All the background I'm provided with is that "A resin used for making non-wrinkle shirts releases formaldehyde, which could cause contact dermatitis for some people; no disclosure requirements exist, and in 2008 the U.S. Government Accountability Office tested formaldehyde in clothing and found that generally the highest levels were in non-wrinkle shirts and pants.". Is that enough to answer the question?