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What are the two plural indefinite articles in Spanish?

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Consiste à prélever un petit fragment de la lésion, en vue de confirmer ou d’infirmer le diagnostic clinique ou d’apporter des précisions complémentaires.Il faut choisir une zone qui soit représentative de l’ensemble de la lésion, de préférence à cheval sur la lésion et la muqueuse saine périphérique.è Ceci est possible lorsque la lésion est homogène ;è Dans le cas contraire, on réalise plusieurs prélèvements numérotés et clairement identifiés sur la fiche de renseignements. (On fait un schéma avec des annotations géographiques, il est important de préciser la zone biopsiée.)Lorsqu’il existe plusieurs lésions, on effectue de préférence le prélèvement sur une lésion récente, en évitant les zones d’inflammation et de nécrose qui sont le plus souvent ininterprétables.Le fragment doit avoir une taille et une épaisseur suffisantes : les dimensions idéales sont d’environ 1 x 0,5 cm et 0,5 cm d’épaisseur. Dans le cas le plus fréquent, celui d’une biopsie de muqueuse, il faut d’abord inciser profondément les contours du prélèvement au bistouri à lame. Ne le saisir que lorsqu’il est suffisamment libéré, par sa partie profonde, avec une pince fine, et sectionner au bistouri sous la pince.Représentation schématique d’une biopsie incisionnelle.Faire une incision en quartier d’orange, pour permettre une suture avec les berges rapprochées (pas de conséquence de suturer dans la tumeur, même maligne

What advantage do compression chamber environmental control systems have over `flushing` methods?

0/1Question 17Which of the following describes the nineteenth-century Shakers?No answer provideda. Men greatly outnumbered women in Shaker communities.b. They allowed both women and men to govern their communities.c. They believed men were spiritually weaker than women.d. They excluded African Americans in order to maintain racial purity.

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