reate a Causal Network for clusters of symptoms of COVID-19 Create the structure of the network: Using LASSO, regress the PCR test results on all variables and pairwise or triple cluster of variables that precede it. Using LASSO, regress each variable that is a direct predictor of PCR test results on all preceding variables. In these regressions, statistically significant variables are parents in the Markov blanket of the regression response variable. Draw the network using Netica