Coppola G, Cassibba R, Costantini A What can make the difference? Premature birth and maternal sensitivity at 3 months of age: the role of attachment organization, traumatic reaction and baby's medical risk. Infant Behav Dev. 2007 Dec;30(4):679-84. Epub 2007 Apr 20.
DeBoer RW, Karemaker JM, Strackee J Comparing spectra of a series of point events particularly for heart rate variability data. IEEE Trans Biomed Eng. 1984 Apr;31(4):384-7.
Hofer MA Early social relationships: a psychobiologist's view. Child Dev. 1987 Jun;58(3):633-47.
Ravn IH, Smith L, Lindemann R, Smeby NA, Kyno NM, Bunch EH, Sandvik L Effect of early intervention on social interaction between mothers and preterm infants at 12 months of age: a randomized controlled trial. Infant Behav Dev. 2011 Apr;34(2):215-25. doi: 10.1016/j.infbeh.2010.11.004. Epub 2011 Mar 2.
Shah PE, Clements M, Poehlmann J Maternal resolution of grief after preterm birth: implications for infant attachment security. Pediatrics. 2011 Feb;127(2):284-92. doi: 10.1542/peds.2010-1080. Epub 2011 Jan 17.
Randomized Control Trial of Family Nurture Intervention in the Children's Hospital of New Jersey Neonatal Intensive Care Unit
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
