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Quito; s.n; 21 mar. 1994. [78] p.
Monography
in Spanish
| LILACS
| ID: lil-273319
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Rev. Fac. Odontol. Univ. Cent. Ecuad
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Article
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| LILACS
| ID: lil-156401
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Rev. odontol. Ecuad
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Article
in Spanish
| LILACS
| ID: lil-55550