Whose work first described the symptoms that characterize autism?

What is the most common blood type in the u.s.?

Why is it often difficult to get funding for local parks? a. state governments do not like to grant permits for local parks. b. federal regulations prohibit most fund raising. c. there is often a small tax base. d. federal funding cuts have all but stopped local construction of parks.

You are awaiting the white blood cell differential results for a patient who presented with a ruptured appendix and peritonitis. which type of leukocyte do you expect to be most elevated over its normal value?