“…Most studies were performed in the United States (USA) (n = 4) (17,22,25,28) and the United Kingdom (UK) (n = 4) (20,23,24,27). Of the 12 included studies, three focused their implementation strategy on improving pH testing (17,26,29), three on improving X-ray (23)(24)(25), and six on improving these two methods (18, 20-22, 27, 28). Of the 9 studies (17,18,(20)(21)(22)(26)(27)(28)(29) that used pH testing, four used a pH level of 5.5 as the cutoff point (20,26,27,29), three used a pH level of 5 as the cutoff point (17,18,22), one used a pH value of 4 as the cutoff point (28), and one used a pH value of 6 as the cutoff point (21).…”