American Association of Blood Banks
A similar stanza with aabb rhymes is the basis of the so-called debide (cut in two) metres.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 Various
aabic Association for the Advancement of Brain Injured Children
aabh Association of Ambulatory Behavior Healthcare
aabp American Association of Bovine Practitioners
aabt Association for the Advancement of Behavior Therapy