Institution: | (1) Spectrum Health Research, 25 Michigan Ave, Grand Rapids, MI 49503, USA;(2) Spectrum Health Medical Group/Colorectal Surgery, 3230 Eagle Park Dr NE, Suite 210, Grand Rapids, MI 49525, USA;(3) The Ferguson Clinic/Michigan Medical PC, 4100 Lake Dr, Suite 205, Grand Rapids, MI 49546, USA; |