共 4 条
[1]
Andrews JR, 1936, AM J ROENTGENOL RADI, V36, P575
[2]
Andrews JR, 1937, AM J ROENTGENOL RADI, V38, P145
[3]
HOWRY DH, 1957, ULTRASOUND BIOLOGY M, P49
[4]
Kieffer J, 1938, AM J ROENTGENOL RADI, V39, P497