1. Family Healthcare Network; Porterville California USA CA 93257
2. School of Dentistry, University of Leeds; Leeds UK LS2 9LU
3. Veritas Health Sciences Consultancy Ltd; London UK
4. Leiden University Medical Center; Department of Dermatology; PO Box 9600 B1-Q Leiden Netherlands 2300 RC
5. University of Sao Paulo; Department of Gynecology and Obstetrics, Ribeiro Preto Medical School; Sao Paulo Brazil