With a new administration in the White House but control of U.S. Senate unlikely to change, odds federal legalization marijuana next few years are remote. When it eventually happens, however, could come two basic forms: rescheduling and descheduling. Rescheduling would change from Schedule 1 narcotic—completely illegal under Controlled Substances Act—to 2 or 3, making legally available through ...

BACKGROUND Marijuana potency has risen dramatically over the past two decades. In the United States, it is unclear whether state medical marijuana policies have contributed to this increase. METHODS Employing a differences-in-differences model within a mediation framework, we analyzed data on n=39,157 marijuana samples seized by law enforcement in 51 U.S. jurisdictions between 1990 and 2010, ...

OBJECTIVES This study presents information on the status and impact of medical and legalized marijuana, and the latest data on attitudes and prevalence of use since implementation of these laws. Recent reports from epidemiologists in Denver and Seattle are summarized to give the readers a sense of the changes as these laws have taken effect in their communities. METHODS The status of these la...

Approximately 15% of all couples are unable to conceive after a year and are labeled infertile. In recent years, increasing attention has been given to lifestyle factors that may impact fertility. In the United States, it is estimated that there are more than 17 million current users of marijuana with 4.6 million using marijuana almost daily. Although common, to date, little data exist on the i...

n engl j med 372;11 nejm.org march 12, 2015 989 shops in the Netherlands, but the new products that are available in the United States are quite dif­ ferent. They are skillfully produced and packaged to closely mimic popular candies and other sweets (see photo). These products can now be purchased legally in four states; retail stores are operating in Colorado and Washington State, and voters r...

To reduce the risk of infection in highly immunocompromised patients, prophylactic antibacterial, antifungal and antiviral agents are frequently prescribed and patients are routinely advised to reduce their risk of exposure by avoiding soil, plants and cut flowers due to the presence of Aspergillus and other moulds and Nocardia spp. [1,2]. Other recommendations to limit exposures include the av...