Bed covers and dust mites.
Simon
Michael R
MR
D000485:Allergens; D000818:Animals; D001249:Asthma / Q000517:prevention & control*; D001512:Bedding and Linens; D004781:Environmental Exposure / Q000517:prevention & control*; D006801:Humans; D039981:Pyroglyphidae / Q000276:immunology; D012107:Research Design; D012221:Rhinitis, Allergic, Perennial / Q000517:prevention & control*
D000485:Allergens