The E.P.A. study, which involved 387 public buildings, came up with similar results.
One study, which involved more than 3,000 patients, is the largest study to date of the procedure.
The study, which involved 8,688 people, examined 13 different health conditions including heart disease, diabetes, stroke, depression and osteoarthritis.
The study, which involved statistical parsing and aggregation of thousands of novels, made other striking observations.
The study, which involved more than 9,500 students, documented a narrowing of achievement gaps by several measures.
Details of the study, which involved 25 scientists across Australia, the US, Europe and Asia, are published in the journal Nature.
The study, which involved thousands of listings across five US cities, found that black users were 16% less likely to be accepted than identical guests with white names.
The study, which involved 31 leading experts from around the world, reviewed all the available data on the impact of soot on climate.
The researchers reported that they had uncovered "a number of alarming statistics" in the study, which involved surveying 500 families affected by asthma.
Dr. Kuklo resigned his post at Washington University this summer amid a controversy over the study, which involved a Medtronic bone growth product called Infuse.
