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Johnson CJ, Beitchman JH, Young A, Escobar M, Atkinson L, Wilson B, Brownlie EB, Douglas L, Taback N, Lam I, Wang M.Johnson CJ, et al. Among authors: beitchman jh.J Speech Lang Hear Res. 1999 Jun;42(3):744-60. doi: 10.1044/jslhr.4203.744.J Speech Lang Hear Res. 1999.PMID: 10391637
Young AR, Beitchman JH, Johnson C, Douglas L, Atkinson L, Escobar M, Wilson B.Young AR, et al. Among authors: beitchman jh.J Child Psychol Psychiatry. 2002 Jul;43(5):635-45. doi: 10.1111/1469-7610.00052.J Child Psychol Psychiatry. 2002.PMID: 12120859
Johnson CJ, Taback N, Escobar M, Wilson B, Wilson B, Beitchman JH.Johnson CJ, et al. Among authors: beitchman jh.J Speech Lang Hear Res. 1999 Jun;42(3):761-6. doi: 10.1044/jslhr.4203.761.J Speech Lang Hear Res. 1999.PMID: 10391638