St. Louisans have a chance this month to take part in an historic nationwide research effort to gather health data from 1 million people when the “All of Us Journey” research van stops here for the first time.

The public will have two opportunities to visit the van: from 10 a.m. to 4 p.m. April 15–18 on the corner of Carroll Street and Truman Parkway near the St. Louis Dental Center; and from 10 a.m. to 4 p.m. April 22–26 at St. Louis University.

The first two days at the university, the van will be on the south end of campus at 1309 Carr Lane Avenue; and for the last two, on the north end of campus at 3614 West Pine Mall Boulevard, across from the student center.

Inside the van, people age 18 and older can learn more about the research; and if they agree to participate, fill out health surveys. Participants will also have the opportunity to share their electronic health records and submit physical measurements and blood and urine samples. The process should take about 15 minutes, officials said.

The publicly funded research effort launched in 2016, and more than 26,000 people have since completed the entire protocol, organizers say. People may also sign up to participate on-line at joinallofus.org.