Fig. 4From: Asthma, allergies and respiratory symptoms in different activity groups of swimmers exercising in swimming hallsReported respiratory symptoms in swimming hall users according to a swimming distance of less than 500Â m, greater than 500Â m but less than 1000, greater than 1000Â m, greater than 1000Â m but less than 2000Â m or greater than 2000Â mBack to article page