Measurement
CASS: Comprehensive Acne Severity Scale
Reference and/or access link:
Tan, J.K., Tang, J., Fung, K., Gupta, A.K., Thomas, D.R., Sapra, S., Lynde, C., Poulin, Y., Gulliver, W. and Sebaldt, R.J. (2007). Development and validation of a comprehensive acne severity scale. J Cutan Med Surg, 11(6): 211-6.
doi: 10.2310/7750.2007.00037