by Rapp, R C, Siegal, H A, Li, L, Saha, P
Published in The American journal of drug and alcohol abuse (01.01.1998)

by SIEGAL, Harvey A, LI LI, RAPP, Richard C, SAHA, Pranjit
Published in Substance use & misuse (2001)

by Siegal, Harvey A., Li, Li, Rapp, Richard C., Saha, Pranjit
Published in Substance use & misuse (01.01.2001)

by Siegal, Harvey A., Rapp, Richard C., Li, Li, Saha, Pranjit, Kirk, Karen D.
Published in Journal of drug issues (01.10.1997)