Changes

===A===

===A===

*'''Aa''' - A blood group found in horses of clinical significance. Aa positive foals born to an Aa negative mare could suffer from equine neonatal isoerythrolysis.

*'''Aa''' - A blood group found in horses of clinical significance. Aa positive foals born to an Aa negative mare could suffer from equine neonatal isoerythrolysis

*'''Acantholysis''' - loss of cohesion between cells of living epidermis, especially stratum spinosum

*'''Acantholysis''' - loss of cohesion between cells of living epidermis, especially stratum spinosum

*'''Acanthosis''' - hyperplasia of stratum spinosum

*'''Acanthosis''' - hyperplasia of stratum spinosum