![The relationship between risky substance use and friends’ use of nicotine, alcohol, and other drugs in an adolescent sample]()
The relationship between risky substance use and friends’ use of nicotine, alcohol, and other drugs in an adolescent sampleKelly, Sharon M.; O’Grady, Kevin; Gryczynski, Jan; Mitchell, Shannon G.; Kirk, Arethusa; Schwartz, Robert P. · Drug and Alcohol Dependence · 2015