Paula Ray

Lesheng Zhang^*,1, 

Tom Cambron^*,2, 

Yueqing Niu¹, 

Zigang Xu³, 

Ning Su⁴, 

Hongyan Zheng⁴, 

Karl Wei², 

Paula Ray² 

¹Procter and Gamble, Beijing Innovative center, 

²Procter and Gamble, Mason Business Center, 

³Department of Dermatology, Beijing Children's Hospital, 

⁴, Chinese Academy of Inspection and Quarantine