The National Institute of Child Health and Human Development Early Child Care Research Network, McLeod LD. Psychosocial and lifestyle factors associated with early-onset persistent and late-onset asthma. J Child Health Care. 2010;39(3):185-98.
Rothman KJ, Arellano F. Elevating the level of scientific discourse. Int J Occup Environ Health. 2005 Sep 1;11(3):327-8.