共 51 条
[21]
JENSH RP, 1977, J EMBRYOL EXP MORPH, V39, P9
[22]
CHANGES IN FINE STRUCTURE OF PARIETAL YOLK SAC OF RAT PLACENTA WITH INCREASING GESTATIONAL AGE
[J].
AMERICAN JOURNAL OF ANATOMY,
1968, 122 (03)
:513-&
[24]
KARNOVSKY MJ, 11TH P AM SOC CELL B, P146
[25]
Kefalides N A, 1979, Int Rev Cytol, V61, P167
[28]
LAURIE GW, UNPUB J CELL BIOL
[30]
MADRI JA, 1979, AM J PATHOL, V94, P323