共 17 条
[1]
Choi N. S., 1979, US, Patent No. [4138344, 4138344 USA]
[2]
Choi NS, 1978, Patent No. [4093709, US4093709]
[3]
CHOI NS, 1979, Patent No. 4180646
[4]
CHOI NS, 1978, Patent No. 4131648
[8]
HELLER J, 1985, METHOD ENZYMOL, V112, P422
[9]
HELLER J, 1983, CONTRACEPT DELIV SYS, V4, P43
[10]
Heller J, 1984, Crit Rev Ther Drug Carrier Syst, V1, P39