Results 291 to 292 of about 3,198,558 (292)
Some of the next articles are maybe not open access.
Micro determination of blood urea nitrogen.
The American journal of medical technology, 2002openaire +1 more source
The Relation of the Non-Protein Nitrogen to the Urea Nitrogen of the Blood.
Texas medical journal (Austin, Tex.)openaire +1 more source