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Hartmann SU, Wigdahl B, Neely EB, Berlin CM, Schengrund CL, Lin HM, Howett MK.Hartmann SU, et al. Among authors: schengrund cl.J Hum Lact. 2006 Feb;22(1):61-74. doi: 10.1177/0890334405280651.J Hum Lact. 2006.PMID: 16467288