cohorts
- - emergent cohorts
- al, birmingham
- ar, northwest
- ca, central valley
- ca, san francisco
- ca, socal
- connecticut area
- d.c., washington
- fl, tampa
- ga, atlanta
- il, chicago
- in, indianapolis
- kansas city area
- ky, central
- ma, boston
- md, baltimore
- mi, mid
- mi, west
- mn, twin cities
- mo, kansas city
- nc, charlotte
- nc, raleigh
- nj, princeton
- ny, upstate
- ohio, central
- ok, tulsa
- pa, lehigh valley
- pa, philly
- pa, pittsburgh
- pa, scranton
- tn, nashville
- tx, austin
- tx, central
- tx, houston
- tx, san antonio
