Abstract

References
1.
Brock
Thelma
M.D. “Allergy and Its Relation to Industry, I,” New York State Journal of Medicine , March 1, 1957 .
2.Occupational Allergy , Chas. C. Thomas, Publisher , 1958 , p. 152 foll., p. 156 .
3.
Schwartz
Tulipan
and
Birmingham
, Occupational Diseases of the Skin , Lea & Febiger , Phila. , 1957 .
4.Industrial Medicine and Surgery , Vol. 30 , 1961 . p. 16 –19 .
5.Ibid. , No. 3.
6.Industrial Medicine and Surgery , Vol. 30 , 1961 . p. 142 .
