Serum vitamins A ( retinol ) , D ( @-hydroxyvitamin D -LSB- @D -RSB- ) , E ( - tocopherol , - tocopherol : cholesterol ratio ) , and K ( percentage of undercarboxylated osteocalcin -LSB- % ucOC -RSB- and plasma proteins induced by vitamin K absence factor II -LSB- PIVKA II -RSB- ) were assessed at baseline and @ months .