1. 25‐hydroxy vitamin D levels are associated with childhood asthma in a population‐based study in Peru. Issue 1 (January 2015) Authors: Checkley, W.; Robinson, C. L.; Baumann, L. M.; Hansel, N. N.; Romero, K. M.; Pollard, S. L.; Wise, R. A.; Gilman, R. H.; Mougey, E.; Lima, J. J.; PURA study investigators Journal: Clinical & experimental allergy Issue: Volume 45:Issue 1(2015:Jan.) Page Start: 273 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗