Lawrence and Curlin (2007) correctly note that not all disputants agree about what conscience is. However, I doubt that their distinction is as important as they think. I believe that understanding the distinctions just discussed is far more likely to lead to a satisfactory conclusion. If advocates of conscientious objection for medical professionals attended to these distinctions, they would see that what they want cannot be justified, at least not in the unqualified form most of them advocate.
LaFollette H. The physician’s conscience (Conscience in Medicine). Am J Bioeth. 2007;7(12):15-17.