Environmental Health Perspectives 105, Supplement 2, March 1997: Appendix 1. Question 14 from Ziem's Health and Environmental History Questionnaire

Appendix 1. Question 14 from Ziem's Health and Environmental History Questionnaire

14. For the symptoms and health problems listed below, if you have had the problem in the last year, CIRCLE the number that best describes how often the symptom occurs, or circle 7 if not sure.