P4‐282: DEMOGRAPHIC FACTORS INFLUENCE PARTICIPATION IN LUMBAR PUNCTURES. (1st July 2006) - Blazel, Madeleine; Lazar, Karen K.; Van Hulle, Carol A.; Cole, Aleshia; Spalitta, Alice; Davenport, Nancy J.; Wahoske, Michelle L.; Illingworth, Chuck; Blazel, Hanna; Asthana, Sanjay; Johnson, Sterling C.; Carlsson, Cynthia M.