B cell antigen receptor signal strength and peripheral B cell development are regulated by a 9-O-acetyl sialic acid esterase. - Cariappa A; Takematsu H; Liu H; Diaz S; Haider K; Boboila C; Kalloo G; Connole M; Shi HN; Varki N; Varki A; Pillai S (The Journal of experimental medicine, 2009)