The author contributions to the current research include study design (BW, AE, DD, KK), sample collection (KP, AA, MC, JESavage, ZN), phenotype analyses and QC (JESalvatore, FA, SC), DNA sample processing and QC (CS, BR), genotype QC (BW, VW, JK) statistical and bioinformatic analyses (BW, AE, AW) and manuscript preparation (BW, AE, DD, KK).
