Zheng Chang
![](https://mb.cision.com/Public/206/3944377/b45de6e68dad42ea_800x800ar.jpg)
Photographer: Gunilla Sonnebring
Zheng Chang, researcher at Department of Medical Epidemiology and BiostatisticsPhotographer: Gunilla Sonnebring
Zheng Chang, researcher at Department of Medical Epidemiology and BiostatisticsKAROLINSKA INSTITUTET PRESS OFFICE Opening hours: Monday–Friday 09.00–17.00 CET. Karolinska Institutet – a medical university ki.se