P629: Analytical performance evaluation of whole genome sequencing as first-line genetic testing for intellectual development disorders and congenital malformations* - Peter Bui; Colyn Cain; Julie Cox; Mark Fleharty; Yueyao Gao; Benjamin Hilton; Sean Hofherr; Katie Larkin; Guang Li; David Marsh; Sarah South; Reha Toydemir (Genetics in Medicine Open)