Low bone turnover and low BMD in Down syndrome: effect of intermittent PTH treatment. - Fowler TW; McKelvey KD; Akel NS; Vander Schilden J; Bacon AW; Bracey JW; Sowder T; Skinner RA; Swain FL; Hogue WR; Leblanc DB; Gaddy D; et al. (PloS one, 2012)