Virchow’s Laboratory: Here you'll find material relating broadly to social medicine, public health ethics, justice, oppression, and the social determinants of health. While Virchow is both the father of cellular pathology and the father of social medicine, only one of these is typically represented in Western medical education. You can therefore guess to which laboratory the editor is referring, and to where the social microscopes need be focused.

http://paper.li/prof_goldberg/1355335697?edition_id=98005e00-d5a1-11e5-85a6-0cc47a0d1605