TY  - GEN
AU  - Koepke,J A
TI  - More on calcium ion activity buffers for coagulation testing
SN  - 0009-9147
PY  - 1999///0915
KW  - Blood Specimen Collection
KW  - methods
KW  - Buffers
KW  - Calcium
KW  - Prothrombin Time
N1  - Publication Type: Comment; Letter
ER  -