Comparative Study

Noninvasive methods for haemoglobin screening in prospective blood donors.

Vox Sang. 2013 Aug 1;105(2):116-20.
Observational Study

Validation of a non-invasive pulse CO-oximetry based hemoglobin estimation in normal blood donors.

Transfus Apher Sci. 2014 Feb 1;50(1):95-8.
Comparative Study

Comparison of the accuracy of noninvasive hemoglobin sensor (NBM-200) and portable hemoglobinometer (HemoCue) with an automated hematology analyzer (LH500) in blood donor screening.

Ann Lab Med. 2013 Jul 1;33(4):261-7.