[4]{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/39\/Read-a-Tuberculosis-Skin-Test-Step-3-Version-3.jpg\/v4-460px-Read-a-Tuberculosis-Skin-Test-Step-3-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/39\/Read-a-Tuberculosis-Skin-Test-Step-3-Version-3.jpg\/v4-760px-Read-a-Tuberculosis-Skin-Test-Step-3-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":760,"bigHeight":570}3复诊。硬结直径超过15mm属于阳性。