Table 1: Patient groups and sample sizes.
| 
 Patient Groups  | 
 Sample Size  | 
| 
 Pyoderma Gangrenosum  | 
 Experimental  | 
| 
 255  | 
|
| 
 All Dermatology Patients at WFBH  | 
 Control  | 
| 
 1020  | 
|
| 
 Psoriasis  | 
 1020  | 
| 
 Atopic Dermatitis  | 
 1020  | 
| 
 Skin Cancer  | 
 1020  | 
| 
 All Patients at WFBH  | 
 1020  | 
| 
 Total  | 
 5355  | 
*WFBH = Wake Forest Baptist Health Medical Center