APA (7th ed.) Citation
Hämmig, R., & et al. Safety and tolerability of slow-release oral morphine versus methadone in the treatment of opioid dependence.
Chicago Style (17th ed.) Citation
Hämmig, R., and et al. Safety and Tolerability of Slow-release Oral Morphine Versus Methadone in the Treatment of Opioid Dependence.
MLA (9th ed.) Citation
Hämmig, R., and et al. Safety and Tolerability of Slow-release Oral Morphine Versus Methadone in the Treatment of Opioid Dependence.
Warning: These citations may not always be 100% accurate.