[10] In East Asian cuisine, the northern Chinese rou jia mo and southern gua bao are common foods.In Kansas City, Missouri, beef brisket barbecue sandwiches are common, and are served with sauce atop them or dry.[13] Chopped pork shoulder barbecue sandwiches served with coleslaw atop them are common in Memphis, Tennessee.[14] This sandwich was prepared on a bun with chopped or pulled pork shoulder meat, a tomato-based sauce, and coleslaw.[14] In the book Southern Food: At Home, on the Road, in History, it is stated that other restaurants "followed suit" regarding this sandwich style, and that "...the standard has not changed in more than 60 years.