Likely phenotype as referenced in this guideline, based on converting assigned WHO class to 3 phenotypes. "Normal" defined as very mild or no enzyme deficiency (>60% normal enzyme levels); "Deficient" defined as mild to severely deficient (<10-60% normal) enzyme levels; "Deficient with CNSHA" defined as severe G6PD enzyme deficiency (<10% activity) with chronic non-spherocytic hemolytic anemia based on Luzzatto, L. & Poggi, V. Glucose-6-Phosphate Dehydrogenase Deficiency In: Nathan and Oski's Hematology of Infancy and Childhood, 7th Edition (ed. Meloni, D., Anderson, A. Authors of the book: Orkin, S.H., Fisher, D.E., Look, A.T., Lux IV, S.E., Ginsburg, D., Nathan, D.G. ) (Saunders, Elsevier., 2009).