Bulbo-Spinal Atrophy, X-LinkedMuscular Atrophy, SpinalReceptors, AndrogenTrinucleotide Repeat ExpansionNational Institute of Child Health and Human Development (U.S.)Child AdvocacyCholine Kinase1-Acylglycerophosphocholine O-AcyltransferaseCytidine Diphosphate DiglyceridesPublic HousingBiochemical PhenomenaPhosphatidylethanolaminesSpace FlightAconitate HydrataseInfant, Extremely Low Birth WeightPhosphatidylcholinesGlycerophosphatesEthanolamines