Abstract

References
1.
Bateson
E M
Lebroy
T
(1978 ) Medical Journal of Australia Special Supplement 1; pp 1 –3
2.
Crosby
W H
(1976 ) Journal of the American Medical Association
235 , 2765
3.
Halstead
J A
(1968 ) American Journal of Clinical Nutrition
21 , 1384
4.Lancet (1978 ) ii , 614 –615
5.
Lanskowsky
P
(1959 ) Archives of Disease in Childhood
34 , 140 –148
6.
Vermeer
D
Frate
D
(1979 ) American Journal of Clinical Nutrition
32 , 2129 –2135
7.
Von Bonsdorff
B
(1977 ) British Journal of Haematology
35 , 476 –477
