小編認為一篇撰寫良好的研究論文，不僅具有表述清楚的假設(shè)（問題或目標），其目標也作為全文的基本點貫穿全文的各個部分，使得從開場白到結(jié)束語行文流暢。

以下是一個假設(shè)的、簡寫的論文，以便闡述上述觀點。

Title.Rhubarb eating does not protect against colorectal cancer

Abstract

Background/rationale: Numerous environmental factors influence the incidence of colorectal cancer. Whether rhubarb eating is one of these factors is not known.

Objective: to determine the incidence of colorectal cancer in persons who regularly eat rhubarb compared with the incidence in persons who never eat rhubarb.

Methods: One thousand persons who eat rhubarb at least three times per week and 1000 persons who never eat rhubarb were evaluated with colonoscopy.

Results: The incidence of colorectal cancer in the rhubarb eaters was XXX%. The incidence in the non-rhubarb eaters was YYY%. The difference is not statistically significant (p >1.0).

*Conclusions: The incidence of colorectal cancer detected by colonoscopy in persons who regularly eat rhubarb and those who do not eat rhubarb was not statistically different. In this study population, rhubarb eating did not protect against colorectal cancer.

注：摘要中的結(jié)論與該研究的目標對應(yīng)。

Introduction

*Concluding sentence: In order to help determine if rhubarb protects against colorectal cancer, we examined, by colonoscopy, persons who regularly eat rhubarb and those who do not eat rhubarb.

Discussion

*Opening sentence: In this study, designed to help determine whether rhubarb eating protects against colorectal cancer, we found a similar incidence of cancer, detected by colonoscopy, in persons who regularly eat rhubarb and those who do not eat rhubarb.

*Conclusion(s): The incidence of colorectal cancer, detected with colonoscopy, was similar in persons who regularly eat rhubarb and those who do not eat rhubarb. Thus, rhubarb eating did not protect against colorectal cancer in this study population.