A cohort study is assessing the association of red-meat consumption (at baseline) with cardiovascular disease. After 20 years, 20% of the red-meat eaters were lost to follow-up, and it is believed that many participants who developed CVD left the study before outcome ascertainment (they were also lost to follow-up). Change the DAG you drew in Q3 to incorporate the bias or biases most likely generated in this study (hint: display inclusion in the study or, conversely, loss to follow-up, as a node). Describe in words how this bias might operate.