Langley, J. M.Halperin, S. A.Smith, B.2015-09-102015-09-102003Langley JM, Halperin SA, Smith, B. A pilot study to quantify parental anxiety associated with enrollment of an infant or toddler in a phase III vaccine trial. Vaccine. 2003; 21:3863-3866. PubMed PMID. 12922120.1873-2518http://hdl.handle.net/10222/62391enA pilot study to quantify parental anxiety associated with enrollment of an infant or toddler in a phase III vaccine trial.Text213863