Correction

In the original publication [1] are errors in the acknowledgement section in the backmatter. The corrections can be found below in this Erratum.

Incorrect affiliation 4:

Guangdong Provincial Center for Skin Diseases and Sexually Transmitted Infections Control, No. 2 Lujing Road, Guangzhou, China, 510095.

Correct affiliation 4:

Guangdong Provincial Center for Skin Diseases and Sexually Transmitted Infections Control Center, Dermatology Hospital, Southern Medical University, No. 2 Lujing Road, Guangzhou, China, 510095.

Incorrect author affiliation:

Meizhen Liao15, Dianmin Kang15

Correct author affiliation:

Meizhen Liao16, Dianmin Kang16

Missing affiliation 16:

Shandong Provincial Center for Disease Control and Prevention, Jinan, China