Figure 2.

Study flow-chart. Abbreviations: CA, corrected age; CES-D, Center for Epidemiological Studies Depression Scale; EEG, electroencephalogram; FNI, Family Nurture Intervention; HRV, heart rate variability; NNNS, NICU Network Neurobehavioral Scale; PMA, post-menstrual age; RA, research assistant.

Welch et al. BMC Pediatrics 2012 12:14   doi:10.1186/1471-2431-12-14
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