Graph 1. The 3-D column diagram showing the mean & SD values of iCa+2 with plain and heparinised samples

From

Impedance of Results Using Lithium Heparin to Plain Tubes for Ionized Calcium

T Sudhakar, Sabitha Kandi, B venugopal, K. Bhagwan Reddy, Md. Rafi, Raj kumar, K. V. Ramana

American Journal of Biomedical Research. 2014, 2(4), 67-69 doi:10.12691/ajbr-2-4-2