COVID-19 NOTICE: We remain available to consult with you via phone, Skype, or video conference. However, to minimize the risk to our community and staff our office is temporarily closed for in-person consultations and meetings. You can contact Konrad and Edward via the office phone - 630-318-2606. You can reach Konrad via his email address at, and Edward at his email address at and WeChat (微信) at bidepeng6.