Genotyping arrays
Cord blood was collected at birth for DNA extraction and genotyping
(Genetic and Molecular Epidemiology Laboratory, McMaster University).
DNA was extracted using QiaSymphony automated large sample nucleic acid
purification system. Subjects were genotyped using the Illumina
HumanCoreExome BeadChip comprising over 500,000 single nucleotide
variants (SNVs).