viii ( ahf ) was also labile in the ( base-line ) plasmas of three patients with von willebrand 's disease in whom the ratios of viii ( ahf ) to viii ( vwf ) were 4.4 to 8.1 , but not in the plasmas of four other patients in whom the ratio was approximately 1 .
C0042974
von willebrand 's disease
C0015506
ahf