About the Authors
- Cheong Huat Tan
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
The authors have declared that no competing interests exist.
Conceived and designed the experiments: CHT LCN. Performed the experiments: CHT PSJW MZIL. Analyzed the data: CHT PSJW MZIL. Contributed reagents/materials/analysis tools: CHT PSJW MZIL. Wrote the paper: CHT PSJW MZIL LCN.