共 75 条
[1]
ALZIN HH, 1983, ANN RADIOL, V26, P334
[2]
[Anonymous], 1954, Kunglig Fysiografiska Sallskapets I Lund Forhandlingar
[3]
[Anonymous], BR J PHYS MED
[4]
[Anonymous], 1950, ELECTRONICS
[6]
Buxton JL, 1980, AM I ULTR MED ANN M
[7]
Chan AT, 1996, AM J GASTROENTEROL, V91, P1622
[8]
Chilowsky C., 1917, US Patent, Patent No. [1,471,547, 1471547]
[9]
Chilowsky C, 1916, French Patent, Patent No. 502913