Dr. David Hargroder, Joplin, MO 417 206 2900. There is also a free seminar 11/14/2008 at St. John's Regional Medical Center, 2700 McClelland Blvd, Joplin, MO. Seating is limited. Please call Carla 314 807 7110 or Dr. Hargroder's office 417 206 2900 to reserve a seat.