claim: homozygous l-atpase plays a protective role in sars coronavirus infection
evidence_1: homozygous l-sign (clec4m) plays a protective role in sars coronavirus infection.", "thus, homozygosity for l-sign plays a protective role during sars infection.", "homozygous l-sign ( clec4m ) plays a protective role in sars coronavirus infection.", "this observation confirms that homozygous l-sign does have a protective role in sars-cov infection.")