The safety of chiropractic during pregnancy: A pilot e-mail survey of chiropractors' opinions

This pilot study yielded useful information about the questionnaire and will allow it to be modified so it can yield more useful information in future studies. The questionnaire appears to accomplish the stated goals. A larger pilot study is necessary to evaluate changes made to the questionnaire. This was a preliminary study and the results should be interpreted cautiously as numerous sources of bias were noted, particularly the sampling method employed.