In studying a single nucleotide polymorphism (SNP) in Fcrl3 in asthma and/or AR patients and healthy controls in a Chinese Han population, novel SNP rs7528684 appears to be associated with asthma with comorbid AR, and Fcrl3_3 (rs7528684) and Fcrl3_6 (rs3761959) SNPs are protective against asthma in Mexican male patients (48, 49). Here, FCRL3 is linked to asthma.