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Hedriana HL, Eby-Wilkens EM, Gilbert WM.Hedriana HL, et al.Prim Care Update Ob Gyns. 1998 Jul 1;5(4):184. doi: 10.1016/s1068-607x(98)00099-7.Prim Care Update Ob Gyns. 1998.PMID: 10838344