The researchers surveyed adults in MI who were seeking medical cannabis recertification or a new certification for chronic pain in 2014 and 2015. The researchers asked about respondents' driving habits for the past six months.
Bonar said mixing marijuana and driving is risky.
Bonar recommends no driving at all after using cannabis or waiting several hours before getting behind the wheel.
She added that there is uncertainty about how marijuana could affect driving for chronic daily users, who might have effects that last even longer.
That law, which allows any MI resident over the age of 21 to use marijuana inside a private residence, became legal in December.
A mechanic was decapitated by the rotor blade of a helicopter after it rose into the air unexpectedly while he worked on it. Two men were using a power cart to jumpstart a helicopter when it began acting erratically - moving up and then down.
Ginsburg's absence for the past three days and recent health issues have fueled speculation about her future on the high court. Doctors say that there was "no evidence" of disease after the surgery and that "currently, no further treatment is planned".
Prior to the 2018 season, Wilson's rights were traded to the Yankees - his and his father's favorite team. The New York Yankees will have a Super Bowl victor at camp when spring training begins in February.
Musk has disrupted the space industry by creating reusable rockets that could eventually be used on manned missions to Mars. NASA has promised a new date following coordination with the Eastern Range and International Space Station program.
In Cuba in 2018, there were 750 deaths and 7,999 injuries in 11,187 accidents in the country of 11 million. Seven people are dead and five are in critical condition after a bus carrying tourists crashed in Cuba.
Myanmar Reuters journalists to hear appeal decision
Reporters Without Borders representative Daniel Bastard said it would be "utterly devastating" if the court upholds the verdict. The two men were among the journalists recognized as "guardians" by Time magazine in its 2018 "Person of the Year" edition.
Klopp focusing on the future after Liverpool wobble
Matip is making progress in his recovery and, like Lovren, could be back to face Crystal Palace next weekend. And midfielder Fabinho might be forced to fill in as he did in the 2-1 defeat by Wolves in the FA Cup .
NYK, Kings talk Kanter-Randolph swap
Throughout his National Basketball Association career, Kanter has played with three different teams in seven-and-a-half seasons. But among the teams that could put him to good use include the Los Angeles Clippers, San Antonio Spurs and the Brooklyn Nets.
ExxonMobil, IBM Partner on Quantum Computing
These systems are created to tackle problems that are too complex and exponential in nature for classical systems to handle. IBM has bet a lot on this futuristic technology and time and again shared its progress in the field of quantum computing.
BBC weather presenter Dianne Oxberry dies aged 51
I was privileged enough to work with her on @ BBCNWT and she was as loved and admired in the office as she was by the viewers. Sunderland-born Oxberry and her cameraman husband moved to Greater Manchester in 1993 after her run on BBC Radio 1 in London.