EDTA tubes are suitable for insulin and C-peptide measurement in resource-limited settings and can be stored at room temperature for up to 24 hours - Nathan Mubiru; Rogers Mukasa; Isaac Sekitoleko; Priscilla A. Balungi; Ronald M. Kakumba; Terry Ongaria; Hubert Nkabura; Moffat Nyirenda; Anxious J. Niwaha; Wisdom P. Nakanga (PLoS ONE, 2025)