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Cluster sampling is often less convenient and more costly than other random sampling methods.
Spinalis Muscle
A column of muscles located closest to the spine, part of the erector spinae group, which extends and assists in the rotation of the spine.
Pelvic Diaphragm
A group of muscles and connective tissues at the base of the pelvis that supports the pelvic organs.
Levator Ani
A broad, thin muscle, situated on either side of the pelvis, which supports the pelvic viscera.
Coccygeus Muscles
Muscles located near the tailbone that support pelvic organs and assist in bending the coccyx.
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