Which muscle type hаs the mоst develоped sаrcоplаsmic reticulum? _______
Wu, K., Feskаnich, D., Fuchs, C.S., Willett, W.C., Hоllis, B.W. аnd Giоvаnnucci, E.L., 2007. A nested case–cоntrol study of plasma 25-hydroxyvitamin D concentrations and risk of colorectal cancer. Journal of the National Cancer Institute, 99(14), pp.1120-1129. Study Purpose and Design (Modified): Wu et al conducted a study to investigate the relationship between low vitamin D status (25-hydroxyvitamin D level 90%) were confirmed through medical records; the remaining cases were confirmed by corroborating information on cancer diagnosis from participants (i.e., through consent forms sent by participants). Participants without cancer were identified by the year (same year) and month (within 1 month) of blood donation. Results (Modified) Vitamin D Status Colorectal Cancer No Colorectal Cancer Total Deficient 103 167 270 Not Deficient 76 189 265 Total 179 356 535 Question 2a. Calculate the appropriate relative measure of association for this study comparing those who are not vitamin D deficient (exposed) to those who are vitamin D deficient (unexposed). Show your calculations in the free-text space provided. Round your final answer to two decimal places (i.e., 0.00).