1. The picas;McLoughlin;Br J Hosp Med.,1987
2. Pica and nutrition.;Danford;Ann Rev Nutr.,1982
3. Pica: an overview;Sayetta;Am Fam Physician.,1986
4. Broadening the perspective of pica: literature review.;Lacey;Public Health Rep.,1990
5. Studies on the diets of pregnant women in Mississippi: ingestion of clay and laundry starch.;Ferguson;New Orleans Med Surg J.,1950