Xie J, Juliao PC, Gilsdorf JR, Ghosh D, Patel M, Marrs CF. Identification of new genetic regions more prevalent in nontypeable haemophilus influenzae otitis media strains than in throat strains. J Clin Microbiol. 2006 Dec;44(12):4316-25. doi: 10.1128/JCM.01331-06
Hartman M, Bolton E, Fehnel SE. Accounting for age differences on the Wisconsin Card Sorting Test: decreased working memory, not inflexibility. Psychol Aging. 2001 Sep 1;16(3):385-99.