https://phys.org/news/2019-01-gut-bacteria-fruit-flies-major.html

The project was carried out in collaboration with Joanne Yew at Temasek Life Sciences Laboratory and the National University of Singapore, and Joel Selkrig at Nanyang Technological University.

"I met Joel by chance at a symposium. He said that, in mice, it was hard to get sufficient sample sizes to get a useful estimate of the effects of removing germs from an animal," explains Claridge-Chang.