Research Summaries in April and May

In  Are investments in urban green space worthwhile?, find out what a review of the literature tells us about the impact of investing in urban green spaces. 

In Psychological treatment can improve overall mental health-but not for everyone, read about the results of a trial in South Africa aimed at improving people's mental health.

In How can we assess the value of new antibiotics?, read how payments for manufacturers of new antibiotics can be designed.