1. “Time for dabs”: Analyzing Twitter data on marijuana concentrates across the U.S. Daniulaityte, Raminta; Nahhas, Ramzi W.; Wijeratne, Sanjaya; Carlson, Robert G.; Lamy, Francois R.; Martins, Silvia S.; Boyer, Edward W.; Smith, G. Alan; Sheth, Amit 2015 Articles EpidemiologyMarijuanaVapingElectronic cigarettesDrug abuseDrug abuse--EpidemiologyTwitter
2. “Those edibles hit hard”: Exploration of Twitter data on cannabis edibles in the U.S Lamy, Francois R.; Daniulaityte, Raminta; Sheth, Amit; Nahhas, Ramzi W.; Martins, Silvia S.; Boyer, Edward W.; Carlson, Robert G. 2016 Articles EpidemiologyMarijuanaCannabisCannabis--Social aspectsMarijuana--Social aspectsTwitter
3. Predictors of transition to heroin use among initially non-opioid dependent illicit pharmaceutical opioid users: A natural history study Carlson, Robert G.; Nahhas, Ramzi W.; Martins, Silvia S.; Daniulaityte, Raminta 2016 Articles EpidemiologyDrug abuseDrug abuse--EpidemiologySubstance abuseSubstance abuse--EpidemiologyHeroinHeroin abuseOpioidsOpioid abuse
4. Latent class analysis of non-opioid dependent illegal pharmaceutical opioid users in Ohio Carlson, Robert G.; Nahhas, Ramzi W.; Daniulaityte, Raminta; Martins, Silvia S.; Li, Linna; Falck, Russel 2014 Articles EpidemiologyMedication abuseOpioidsOpioid abuseDrug abuse--EpidemiologyDrug abuse