Hammerslag, L., Hofford, R., Kang, Q., Kryscio, R., Beckmann, J., & Bardo, M. (2020). Changes in fentanyl demand following naltrexone, morphine, and buprenorphine in male rats. Drug and Alcohol Dependence, 207, 107804. https://doi.org/10.1016/j.drugalcdep.2019.107804 (Original work published 2020)

Malone, S., Keller, P., Hammerslag, L., & Bardo, M. (2021). Escalation and reinstatement of fentanyl self-administration in male and female rats. Psychopharmacology, 238(8), 2261-2273. https://doi.org/10.1007/s00213-021-05850-7

Bardo, M., Hammerslag, L., & Malone, S. (2021). Effect of early life social adversity on drug abuse vulnerability: Focus on corticotropin-releasing factor and oxytocin. Neuropharmacology, 191, 108567. https://doi.org/10.1016/j.neuropharm.2021.108567 (Original work published 2021)

Hammerslag, L., Denehy, E., Carper, B., Nolen, T., Prendergast, M., & Bardo, M. (2021). Effects of the glucocorticoid receptor antagonist PT150 on stress-induced fentanyl seeking in male and female rats. Psychopharmacology, 238(9), 2439-2447. https://doi.org/10.1007/s00213-021-05865-0

Hammerslag, L., Humburg, B., Malone, S., Beckmann, J., Saatman, K., , & Bardo, M. (2022). Peer-induced cocaine seeking in rats: Comparison to nonsocial stimuli and role of paraventricular hypothalamic oxytocin neurons. Addiction Biology, 27(5), e13217. https://doi.org/10.1111/adb.13217