GRIN2A and thanatophoric dysplasia: Nominally significant associations were identified for rs2229894 of SLC1A3 and orofacial TD (β = −0.4566 ± 0.1855, p = 0.0138) as well as for rs7192557 of GRIN2A and limb-truncal TD (β = 0.4385 ± 0.1958, p = 0.0251).