False-Negative Results in Point-of-Care Qualitative Human Chorionic Gonadotropin (hCG) Devices Due to Excess hCG{beta} Core Fragment

A. M Gronowski, M Cervinski, U. H Stenman, A Woodworth, L Ashby and M. G. Scott

Clinical Chemistry 55 ( 7 ): 1389 - 1394 , 2009