Mark has been dating Deirdre for some time. He never lets her go out with her friends or talk to other men. He is demanding and possessive of her. His love for Deirdre could best be categorized as

What is the estimated heritability of serious alcohol-related problems?

a. 13 percent b. 33 percent c. 66 percent d. 86 percent

Being willing to fight seems to be an important protective factor against substance use

Indicate whether the statement is true or false