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. 2021 Jun 11;15(6):e0009399. doi: 10.1371/journal.pntd.0009399

Fig 3. Histograms showing estimated time that penicillin concentrations remain greater than 20 ng/mL (Panel A) and 10 ng/mL (Panel B) following administration of intramuscular benzathine benzylpenicillin G to Ethiopian patients at risk of progressive rheumatic heart disease.

Fig 3

Individuals with a self-reported episode of sore throat during the injection cycle are denoted (*).