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Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
Age Differences in Attention to a Puppet Show Video
A typical pop tester used to check the spray pattern of a diesel engine injector.
Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern.
X-Linked Recessive Pattern