The purpose of this database study will also be to evaluate quality of life (QoL) measures and correlate these QoL measures with disease severity in patients with pemphigus and BP. QoL is an important and independent component of disease impact on patients. This database study will use the following QoL measures: the SF-36, which is a nonspecific QoL measure; the Skindez-29 and the Dermatology Life Quality Index (DLQI), which are dermatology-specific instruments; the Autoimmune Bullous Disease Quality of Life (ABQOL) and Treatment of Autoimmune Bullous Disease Quality of Life (TABQOL) questionnaires, which are AIBD-specific tools. The results will be utilized in planning future clinical studies.