Supplemental Material for
Sibling Influences on Adolescent Alcohol Use During the Spring 2020 COVID-19 Pandemic Shutdown
Shawn D. Whiteman 
, Sahitya Maiya , Jenna R. Cassinat , Sarfaraz Serang, Brian C. Kelly, Sarah A. Mustillo, and
Jennifer L. Maggs
Psychology of Addictive Behaviors,
Vol.
37,
No.
7,
pp.
961–968
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