Christine Schaffran

Developmental trajectories of criteria of nicotine dependence in adolescence.

Bengt Muthén, B. Muthén, D. Kandel, 2008, Drug and alcohol dependence.

ALTERNATIVE APPROACHES TO UNOBSERVED HETEROGENEITY IN THE ANALYSIS OF REPEATABLE EVENTS

Kazuo Yamaguchi, K. Yamaguchi, Christine Schaffran, 1986 .