4Hyatt B A,Yost H J.The Left-right coordinator:the role of Vg1 in organizing left-right axis formation[J].Cell,1998,93:37-46.
5Yokoyama T,Copeland N G,Jenkis N A,et al.Reversal of left-right assymetry:a situs inversus mutation[J].Science,1993,260:679-682.
6Lowe L A,Supp D M,Sampath K,et al.Conserved left-right asymmetry of nodal expression and alterations in murine situs inversus[J].Nature,1996,381:158-161.
3Barbato A, Frischer T, Kuehni CE, et al. Primary ciliary dyskinesia: a consensus statement on diagnostic and treatment approaches in children[J]. Eur Rcspir J,2009,34(6): 1264- 1276.