Hassaan Yousufi

Heritability of plasma neopterin levels in the Old Order Amish

Sarah H. Stephens, Andrew J. Hoisington, D. Fuchs, 2017, Journal of Neuroimmunology.

Seasonality of mood and behavior in the Old Order Amish.

Sarah H. Stephens, A. Shuldiner, B. Mitchell, 2013, Journal of affective disorders.

Test-retest reliability of the Seasonal Pattern Assessment Questionnaire in Old Order Amish

T. Postolache, Hira Mohyuddin, Nadine Postolache, 2013, International journal on disability and human development : IJDHD.