TY - STAND AU - T. McKeever AU - S. Lewis AU - C. Smith AU - R. Hubbard BT - Am J Respir Crit Care Med DO - 10.1164/rccm.200202-158OC M1 - 6 PY - 2002 SP - 827 EP - 32 T2 - Am J Respir Crit Care Med TI - The importance of prenatal exposures on the development of allergic disease: a birth cohort study using the West Midlands General Practice Database VL - 166 SN - 1073-449X (Print) 1073-449x ER -