6 public-domain matches
Methodological Studies
NIDA Research Monograph Series #164: Behavioral Studies of Drug-Exposed Offspring: Methodological Issues In Human and Animal Research
NIDA Research Monograph Series #109: Longitudinal Studies of HIV Infection in Intravenous Drug Users: Methodological Issues in Natural History Research
NIDA Research Monograph Series #114: Methodological Issues in Controlled Studies on Effects of Prenatal Exposure to Drug Abuse
statistical averages a methodological study
statistical averages a methodological study
the great mortalities