RT Journal Article
SR Electronic
T1 Letter to the Editor
JF Science
JO Science
FD American Association for the Advancement of Science
SP 1617
OP 1618
DO 10.1126/science.155.3770.1617
VO 155
IS 3770
A1 Bruce-Chwatt, L. J.
A1 Wolfensberger, Wolf
YR 1967
UL http://science.sciencemag.org/content/155/3770/1617.1.abstract
AB