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Silvia S. Martins, MD, PhD, and colleagues used data from the National Survey on Drug Use and Health from 2015 to 2019 to estimate cannabis law associations with opioid misuse and use disorder.

Most genes influence many facets of our being—our health, our physical traits, our personality—and only a fraction of those interactions have been investigated.

Research by the Columbia University Mailman School of Public Health confirms that "interstate gun transfers are a major contributor to gun crime, injury and death in the United States."

"We have to continue to invest in surveillance in areas where we think these infectious agents are likely to emerge," said Ian Lipkin, MD, an infectious diseases researcher at Columbia University.