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Fig. 1 | BMC Public Health

Fig. 1

From: Using a monitoring and evaluation framework to improve study efficiency and quality during a prospective cohort study in infants receiving rotavirus vaccination in El Alto, Bolivia: the Infant Nutrition, Inflammation, and Diarrheal Illness (NIDI) study

Fig. 1

The NIDI Study Enrollment and Loss to Follow-up, 2013–2015. * Five twin pairs were enrolled. ¥ The third infant blood draw was at 12–18 months of age due to new funding and new research questions, after many pairs had already completed the final study visit, resulting in a smaller sample size

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BMC Public Health

ISSN: 1471-2458

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