Ekdahl, K. N., Norberg, D., Bengtsson, A. A., Sturfelt, G., Nilsson, U. R., & Nilsson, B. (2007). Use of Serum or Buffer-Changed EDTA-Plasma in a Rapid, Inexpensive, and Easy-To-Perform Hemolytic Complement Assay for Differential Diagnosis of Systemic Lupus Erythematosus and Monitoring of Patients with the Disease. American Society for Microbiology.

Ekdahl, Kristina N., Dan Norberg, Anders A. Bengtsson, Gunnar Sturfelt, Ulf R. Nilsson, and Bo Nilsson. Use of Serum or Buffer-Changed EDTA-Plasma in a Rapid, Inexpensive, and Easy-To-Perform Hemolytic Complement Assay for Differential Diagnosis of Systemic Lupus Erythematosus and Monitoring of Patients With the Disease. American Society for Microbiology, 2007.

Ekdahl, Kristina N., et al. Use of Serum or Buffer-Changed EDTA-Plasma in a Rapid, Inexpensive, and Easy-To-Perform Hemolytic Complement Assay for Differential Diagnosis of Systemic Lupus Erythematosus and Monitoring of Patients With the Disease. American Society for Microbiology, 2007.