| http://www.w3.org/ns/prov#value | - Nature of calcified deposits The calcified deposits in cartilage are believed to be similar to those in bone, dentin and other calcified tissues: they are considered to consist of calcium phosphate and to correspond to very small crystals which, when viewed under the electron microscope, have a needle- or filament-like shape and measure from about 2 to 5 nm in thickness and from 40 to 160 nm in le
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