Ontology-Based Federated Data Access to Human Studies Information. - Ida Sim; Simona Carini; Samson W. Tu; Landon Detwiler; James F. Brinkley; Shamin Mollah; Karl Burke; Harold P. Lehmann; Swati Chakraborty; Knut M. Wittkowski; Brad Pollock; Thomas Johnson; et al. (AMIA, 2012)