事实上，成功地施行手术治疗的病例少的可怜。
In fact, there have been very few reports of successful surgical treatment.
尽管对动物突触的研究提示PSD可能在人类疾病中扮演重要角色，但是真正在人类病例中对PSD的研究却是少之又少。
Although studies of animal synapses have indicated that the PSD could be important in human diseases and behaviour, surprisingly little was known about it in humans.
将这部分（病人的）收入拿走，医生们只剩下利润少的复杂的病例。
Take away this revenue and doctors will be left with only complicated cases that yield less profit.
结果：胸腔镜治疗手术时间短、术中出血少、病情恢复快，全部病例均治愈出院无复发。
Results:Assisted thoracic surgery a short time, less blood loss, rapid resumption of the disease, all patients were cured and discharged without recurrence.
大样本病例观察少，合作规范临床研究不够；
Observation on big sample cases lacked and cooperated standard clinical research was deficient.
罕用药研发主要面对两方面的困难，一方面是病患人数少，商业价值有限，另一方面是病例不足。
The main difficulties of Orphan Drug Research and Development is by both sides, on the one hand, the small number of patients, limited commercial value, on the other hand, insufficient cases.
但由于病例数少，影响实验的可信度。
However, the deficient number of cases impacts the credibility of the articles.
儿童“嗜睡性脑炎”病例报导少，诊断需排除感染、生化、变性、自身免疫性、中毒或代谢性因素所致的急性脑病。
It is rarely reported in children and the diagnosis is made by exclusion of infective, biochemical, degenerative, autoimmune, toxic or metabolic causes of acute encephalopathy.
结论经纤支镜高频电刀治疗气道阻塞性病变疗效好、并发症少，气道严重阻塞的重症病例有一定技术难度和治疗风险。
High frequency electrocautery is valuable in treating airway obstructive focus, and complication is few, but there are some therapy danger and technique difficulty in serious ill.
但由于目前开展的手术例数少，尚需积累更多的病例及经验，以进一步观察其远期疗效。
But because at present develops the surgery number are few, still had to accumulate more case of illness and the experience, to further observed its forward curative effect.
但本组病例数略少，在反映结果的准确性及全面性上存在一定局限。
However, the number of cases in this group slightly less, to reflect the results of the accuracy and comprehensiveness, there are some limitations.
但本组病例数略少，在反映结果的准确性及全面性上存在一定局限。
However, the number of cases in this group slightly less, to reflect the results of the accuracy and comprehensiveness, there are some limitations.
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