共 12 条
- [1] ANDERSON JH, 1973, SCANNING ELECTRON MI
- [3] CARR KE, 1968, LANCET, V2, P570
- [4] CARR KE, 1975, BRIT J RADIOL, V48, P608
- [5] HAGEMANN R F, 1970, American Journal of Physiology, V218, P637
- [6] JACQUES WE, 1965, EXPTL MOLECULAR PATH, V4, P576
- [9] MARSH MN, 1968, GUT, V10, P940