Device for measurement of fetal breathing movements--I. The TD-recorder. A new system for recording the distance between two echogenerating structures as a function of time.
作者信息
Lindström K, Marsál K, Gennser G, Bengtsson L, Benthin M, Dahl P
出版信息
Ultrasound Med Biol. 1977;3(2-3):143-51. doi: 10.1016/0301-5629(77)90066-7.