1. Hyperemesis gravidarum;Abell;Gastroenterol Clin North Am,1992
2. Diet during pregnancy in an Asian community in Britain—energy, protein, zinc, copper, fibre and calcium;Abraham;Hum Nutr Appl Nutr,1985
3. Parenteral nutrition for patients with inflammatory bowel disease;Afonso,1993
4. Iron-deficiency anemia increases risk of preterm delivery;Allen;Nutr Rev,1993
5. Calcium and phosphorus;Allen,1994