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JECH-2011-200114
JECH-2011-200114
http://dx.doi.org/10.1136/JECH-2011-200114
Association of serum 25-hydroxyvitamin D₃ and D₂ with academic performance in childhood: findings from a prospective birth cohort.
P356
Q36426163-20123396-A014-4CE3-835B-1EE11920E487
P356
JECH-2011-200114
http://dx.doi.org/10.1136/JECH-2011-200114