claim: high ace2 deficiency in testes suggests possible existence of gender-specific viral reservoirs
evidence_1: we observed that the testes was one of the highest sites of ace2 expression in 3 independent rna expression databases (human protein atlas, famtom5 and getx).", "high expression of ace2 in testes raises the possibility that testicular viral reservoirs may play a role in viral persistence in males and should be further investigated.", "ace2 was also determined to be highly expressed in testicular cells at the protein levels.")