1. History of the maternal mortality study committees in the United States. After office hours;Marmol;Obstet. Gynecol,1969
2. Committee reports on Texas' maternal deaths;Gibbs;Texas Med,1971
3. Texas' maternal deaths;Gibbs;Texas Med,1973
4. Committee reports on maternal deaths;Gibbs;Texas Med,1974
5. Maternal deaths due to stroke;Gibbs;Am. J. Obstet. Gynecol,1974