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Fab All North offers welding services for all materials including aluminum, steel & stainless steel. We always use the right process for the right job including Stick, TIG/Pulsed TIG, MIG/Pulsed MIG. All our welding is done CWB, and ASME as per welding codes.

This system, known as the FAB classification, has largely been replaced, as newer lab tests now allow doctors to classify ALL more accurately. Doctors have found that cytogenetic tests, flow cytometry, and other lab tests provide more detailed information about the subtype of ALL and the patient’s prognosis.

The French–American–British (FAB) classification systems refers to a series of classifications of hematologic diseases. It is based on the presence of dysmyelopoiesis and the quantification of myeloblasts and erythroblasts .

fab协作组提出原始细胞占全部骨髓有核细胞(anc)≥30%为al的诊断标准。 多数病例骨髓象有核细胞显著增生以原始细胞为主，而较成熟中间阶段的细胞缺如，并残留少量成熟粒细胞，形成所谓“裂孔”现象。

fab标准将原始细胞≥30%作为al的诊断门槛。 按细胞形态和细胞化学染色分为ALL和AML，前者可再分为L1、L2和L3型，后者再分为M1～M6型，后来又增加了M0和M7两个亚型。

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According to the FAB criteria, acute (leukemias with at least 3% MPO-positive blasts in BM should be classified as myeloid. However, low level MPO positivity without expression of other myeloid markers is detectable by means of electron microscopy in rare ALL cases. True MPO+ ALL is discussed below in the mixed lineage acute leukemias section.

FAB分型： 急性白血病（AL）分为 急性非淋巴细胞白血病 （ANLL）和 急性淋巴细胞白血病 （ALL）。 急性非淋巴细胞白血病又分为以下7种类型：M1（急性粒细胞白血病未分化型）、M2（急性粒细胞白血病部分分化型）、M3（急性早幼粒细胞白血病）、M4（急性粒-单核细胞白血病）、M5（急性单核细胞白血病）、M6（急性红白血病）、M7（急性巨核细胞白血病）。 急性淋巴细胞白血病又分为3型：L1型（原始和幼淋巴细胞以小细胞为主，大小较一致，染色质较 …

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