Which of the following is a limitation on congressional power?
a.
granting patents and copyrights
b.
setting and collecting federal taxes
c.
regulating interstate trade
d.
taxing interstate trade

Rapid Immunochromatographic Assay in card format Improved methods are needed for field diagnosis of onchocerciasis, to support efforts aimed at elimination of the disease. A rapid-format card test was evaluated that detects IgG4 antibodies to recombinant Onchocerca volvulus antigen Ov16 with serum samples from patients with onchocerciasis and with various types of control serum samples.

The common sense pamphlet i think