“…Several studies have described speech outcomes of adults with a CP±L, using an array of perceptual and instrumental assessments to measure various parameters in the speech and communication domains (Allori et al, 2017;ICHOM, 2018). Whereas Lohmander et al (2012) reported good overall long-term speech outcomes at age 19 with little to no residual speech deficits, other authors have taken note of consonant production errors (Farzaneh et al, 2008(Farzaneh et al, , 2009Havstam et al, 2008;Kappen et al, 2017;Moren et al, 2017;Peterson et al, 2021;Van Lierde, Monstrey, et al, 2004), hypernasality (Farzaneh et al, 2008(Farzaneh et al, , 2009Havstam et al, 2008;Kappen et al, 2017;Moren et al, 2017), audible nasal emission and/or turbulence (Farzaneh et al, 2008(Farzaneh et al, , 2009Havstam et al, 2008;Moren et al, 2017;Peterson et al, 2021), and reduced speech intelligibility (Kappen et al, 2017;Van Lierde, Monstrey, et al, 2004).…”