合并病症是发生在与残疾相关的原发病症之外(并与之无关)的病症。
Co-morbid conditions occur in addition to (and are unrelated to) a primary health condition associated with disability.
继发性疾病是发生在原发病症之外（并与之相关）的病症，这些疾病是可以预见到的，因而也是可得到预防的。
Secondary conditions occur in addition to (and are related to) a primary health condition, and are both predictable and therefore preventable.
除此之外，还对多原发恶性肿瘤的发生率及上升的原因和发病因素以及研究多原发恶性肿瘤的意义进行了探讨。
Besides, the incidence rate, the factor of disease, the raising reason of disease and the meaning of multiple primary tumor are also discussed in this article.
结论导致慢性肾衰的原发病、年龄、超滤量、PTH与低血压的发生有关。
Conclusion Cause, age of onset chronic renal failure, ultrafiltration, PTH hypotension-related.
本病的发生，往往容易加重原发病，或造成大出血；
The occurrence of this disease is often easy to increase the primary disease, or cause bleeding;
本病的发生，往往容易加重原发病，或造成大出血；
The occurrence of this disease is often easy to increase the primary disease, or cause bleeding;
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