immunoglobulin A & immunoglobulin A subclass 1 & immunoglobulin A subclass 2 panel
immunoglobulin a & immunoglobulin a subclass 1 & immunoglobulin a subclass 2 panel
IgA & IgA subclass 1 & IgA subclass 2 panel
iga & iga subclass 1 & iga subclass 2 panel