(Chicken feather+Cow dander+Goose feather+Horse dander) Ab.IgE.RAST class
(chicken feather+cow dander+goose feather+horse dander) ab.ige.rast class
(Chicken feather+Cow dander+Goose feather+Horse dander) Ab.IgE.RAST class
(chicken feather+cow dander+goose feather+horse dander) ab.ige.rast class