1. Program in Developmental Biology and Medical Scientist Training Program, Baylor College of Medicine, Houston, Texas (GEV-V)
2. Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas (GEV-V)
3. Cellular and Molecular Pathology Graduate Program, University of Wisconsin–Madison, Madison, Wisconsin (JFR-M)
4. Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts (MCQ-F)
5. Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico (MP, JEG-A)