共 17 条
[11]
NEWMAN JP, 1984, PRENAT DIAGN, V4, P467
[12]
RAHMANI MR, 1995, J ULTRAS MED, V14, P971
[13]
REECE EA, 1987, OBSTET GYNECOL, V70, P627
[15]
ROGERS LF, 1964, AMER J ROENTGENOL RA, V91, P273