1. Relation of nutrition to pregnancy in adolescence;National Academy of Sciences;Clin. Obstet. Gynecol.,1971
2. Some reasons for not using the Yates Continuity Correction on 2 × 2 contingency tables;Conover;J. Am. Stat. Assoc.,1974
3. Juvenile pregnancy—role of physiologic maturity;Erkan;Md. State Med. J.,1971