Bryn Nelson is a freelance medical writer based in Seattle.
- White KL, Williams TF, Greenberg BG. The ecology of medical care. N Engl J Med. 1961;265:885-992.
- Green LA, Fryer GE Jr., Yawn BP, Lanier D, Dovey SM. The ecology of medical care revisited. N Engl J Med. 2001;344(26):2021-2025.
- Bodenheimer T, Grumbach K, Berenson RA. A lifeline for primary care. N Engl J Med. 2009;360(26):2693-2696.