1 Adelphi Real World, Bollington, UK. peter.anderson@adelphigroup.com.
2 Adelphi Real World, Bollington, UK.
3 Pfizer Inc, New York, NY, USA.
4 Department of Pharmacy Systems, Outcomes and Policy, University of Illinois Chicago, Chicago, IL, USA.
5 Pfizer Pharma GmbH, Berlin, Germany.
6 Hair Disorders Unit of the Ramón y Cajal University Hospital and Hair Disorders and Hair Transplant Unit of Pedro Jaén Group Clinic, University of Alcalá, Madrid, Spain.