starting from clinical observations indicating a reduction in the stress ulcer rate by parenteral administration of high doses of vitamin a after burns , traumatic damage and surgical operations , the pattern of vitamin a , retinol-binding protein ( rbp ) and prealbumin ( pa ) concentrations in serum was studied in a number of patients with multiple traumas ( group 1 ; n equals 32 ) , cranial-cerebral lesions and postoperative conditions ( group 2 ; n equals 27 ) and patients having undergone gynecologic operation ( group 3 ; n equals 15 ) ;
C0543467
surgical
C0038902
gynecologic operation