作者单位: | [1]Box357720DivisionofMedicalGenetics,DepartmentofMedicine,UniversityofWashington,1705NEPacificStreets,Seattle,WA98195-7720:E-mail,frankch@u.washington.edu [2]Box357720DivisionofMedicalGenetics,DepartmentofMedicine,UniversityofWashington,1705NEPacificStreets,Seattle,WA98195-7720 |