Abstract
References
1.
Kraft
E R
Hoch
S G
Quisno
R A
Newcomb
E A
. (1972 ) Journal of the Society of Cosmetic Chemists
23 , 383 .
2.
Pathak
M A
Fitzpatrick
T B
Frenk
E
. (1969 ) New England Journal of Medicine
280 , 1459 .
3.
Ramsay
C
. (1972 ) Journal of the Society of Cosmetic Chemists
23 , 1 .
4.
Willis
I
Kligman
A M
. (1969 ) Journal of the Society of Cosmetic Chemists
20 , 639 .