Amy Rohn, In 2000, an Epidemiologist presented to [then Dartmouth, now] Geisel Medical School "Grand Rounds", noting: "52% of Detroit Metropolitan Area Schoolchildren met the DSM-IV criteria for PTSD." I don't recall his name, nor other particulars-such as whether his 'territory' includes Grand Rapids, or not, but Geisel Medical School may have a list of its (then Dartmouth) Medical School's 2000 Grand Rounds presenters... Welcome aboard ACEsConnection, and good luck with your Doctoral program.