DuBrock HM, Nathan SD, Reeve BB, Kolaitis NA, Mathai SC, Classi PM, Nelsen AC, Olayinka-Amao B, Norcross LN, Martin SA. Pulmonary hypertension due to interstitial lung disease or chronic obstructive pulmonary disease: a patient experience study of symptoms and their impact on quality of life. Pulm Circ. 2021 Apr 1;11(2):204589402. doi: 10.1177/20458940211005641
Mosconi M, Nelson LM, Hooper SR. Confirmatory Factor Analysis of the NEPSY for younger and older school-age children. Psychol Rep. 2008 Jun;102(3):861-6.