PT  - JOURNAL ARTICLE
AU  - Djerassi, Carl
TI  - Prognosis for the Development of New Chemical Birth-Control Agents
AID  - 10.1126/science.166.3904.468
DP  - 1969 Oct 24
TA  - Science
PG  - 468--473
VI  - 166
IP  - 3904
4099  - http://science.sciencemag.org/content/166/3904/468.short
4100  - http://science.sciencemag.org/content/166/3904/468.full
SO  - Science1969 Oct 24; 166