Case Information for Questions 9 & 10: After being in practi…
Case Information for Questions 9 & 10: After being in practice for ten years and seeing many patients you think notice a trend in the cats presented to your clinic that you diagnose with hyperthyroidism. You feel that more of these hyperthyroid cats come from homes in urban settings compared to other cats presented for other chronic weight loss problems. Seeing this you think living in an urban area may be an exposure factor for hyperthyroidism. You decide to look back into your medical records to study this. The following is what you found. What type of study is this?