| Drs. Gelhorn, Stallings, Young, Corley, Rhee, and Hewitt are with the Institute for Behavioral Genetics, University of Colorado, Boulder; Dr. Hopfer is with the Psychiatry Department, University of Colorado Health Sciences Center, Denver. Electronic address: gelhorn@colorado.edu. |
| Drs. Hartman, Gelhorn, Crowley, Sakai, and Hopfer are with the School of Medicine at the University of Colorado Health Sciences Center; Drs. Stallings, Young, Rhee, Corley, and Hewitt are with the Institute for Behavioral Genetics at the University of Colorado. |
| School of Medicine at the University of Colorado at Denver, CO, USA. Heather.Gelhorn@UCHSC.edu |