1. Bayley scales of infant development;Bayley,1969
2. The development of the concept of objects as related to infant—mother attachment;Bell;Child Development,1970
3. Experimental and quasi-experimental designs for research;Campbell,1966
4. The long-term neurological sequelae of anemia in infancy;Cantwell;Pediatric Research,1974
5. Significance of iron deficiencies. Consequences of mild deficiency in children. Extent and meaning of iron deficiency in the United States;Howell,1971