The amount of a cyclic GMP-AMP phosphodiesterase SMPDL3A (human) when measured in blood. The trait is Ontology of Biological Attributes id OBA_2052855 (amount of cyclic GMP-AMP phosphodiesterase SMPDL3A (human) in blood). Also known as: blood cyclic GMP-AMP phosphodiesterase SMPDL3A (human) amount.