Studies, such as clinical trials, that are completely randomized so that neither the physicians nor the patients know who is receiving an experimental drug are called ________

A) placebo studies
B) homeopathic medicine
C) regenerative medicine
D) double-blind trials
E) None of these choices


D

Biology & Microbiology

You might also like to view...

Radiolarians have characteristic ____, which are thin, ray-like strands of cytoplasm supported internally by bundles of

____.

a. axopods; microfilaments b. axopods; microtubules c. spicules; microfilaments d. spicules; microtubules

e. microfilaments; axopods

Biology & Microbiology

Which feature is common to the hagfish, lamprey, cartilaginous fish, and amphibians?

a. Bony appendages b. Swim bladder or lungs c. Jaws d. Backbone e. Braincase

Biology & Microbiology

Land plants are thought to have arisen most directly from a(n) red algal ancestor

___________________ Indicate whether the statement is true or false.

Biology & Microbiology

Choose the letter of the best match from the following:A. abscisic acidB. auxinC. ethyleneD. cytokininE. gibberellinIts defoliant effects were first noticed when it leaked from gas lights; later found to be produced by plants themselves.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology