Janet is writing a research paper about the use of radiation in cancer
treatment. she has located a source she wants to use: an article published in
a peer-reviewed journal focused on cancer research, written by david sparks,
m. d. in 1976. why might this source not be credible?
o
a. its information may be out of date.
b. it was not written by a researcher.
o
c. its findings have not been verified.
d. it is not likely to be unbiased.
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