A Blood Test to Look at Cells of the Immune System in Healthy Children

Bellevue Hosp / New York Univ Med Ctr, New York

Harlem Hosp Ctr, New York

Bronx Lebanon Hosp Ctr, The Bronx

Montefiore Med Ctr Adolescent AIDS Program, The Bronx

North Shore Univ Hosp, Great Neck

Schneider Children's Hosp, New Hyde Park

Children's Hosp at Albany Med Ctr, Albany

Howard Univ Hosp, Washington D.C.

The Med Ctr Inc, Columbus

Univ of Florida Health Science Ctr / Pediatrics, Jacksonville

Univ of Miami (Pediatric), Miami

North Broward Hosp District, Fort Lauderdale

Palm Beach County Health Dept, Riviera Beach

Univ of Alabama at Birmingham - Pediatric, Birmingham

Univ of South Alabama, Mobile

Univ of Mississippi Med Ctr, Jackson

Mt Sinai Hosp Med Ctr / Dept of Pediatrics, Chicago

Cook County Hosp, Chicago

Texas Children's Hosp / Baylor Univ, Houston

Los Angeles County - USC Med Ctr, Los Angeles

State Univ of New York at Stony Brook, Stony Brook

Univ of Rochester Med Ctr, Rochester

Children's Hosp of Philadelphia, Philadelphia

Children's Hosp of Washington DC, Washington D.C.

Johns Hopkins Hosp - Pediatric, Baltimore

Duke Univ Med Ctr, Durham

Med Univ of South Carolina, Charleston

Chicago Children's Memorial Hosp, Chicago

Univ of Chicago Children's Hosp, Chicago

Tulane Univ / Charity Hosp of New Orleans, New Orleans

Tulane Univ Hosp of New Orleans, New Orleans

Cedars Sinai / UCLA Med Ctr, Los Angeles

Harbor - UCLA Med Ctr / UCLA School of Medicine, Los Angeles

UCSD Med Ctr / Pediatrics / Clinical Sciences, La Jolla

UCSF / Moffitt Hosp - Pediatric, San Francisco

Children's Hospital & Medical Center / Seattle ACTU, Seattle

Children's Hosp of Boston, Boston

Baystate Med Ctr of Springfield, Springfield

Univ of Massachusetts Med School, Worcester

UMDNJ - Robert Wood Johnson Med School / Pediatrics, New Brunswick

Univ of Medicine & Dentistry of New Jersey / Univ Hosp, Newark

Saint Joseph's Hosp and Med Ctr/UMDNJ - New Jersey Med Schl, Newark

Ramon Ruiz Arnau Univ Hosp / Pediatrics, Bayamón

Univ of Puerto Rico / Univ Children's Hosp AIDS, San Juan

San Juan City Hosp, San Juan