The ABO blood group system was discovered in 1901, and since then, has been of major importance in medicine. Racial and ethnic differences in blood type and composition are documented. The frequency with which blood types ...

Although neuroanatomical studies have indicated the occurrence of nicotinic acetylcholine receptors (nAChR) in mononuclear lymphocytes of humans, no specific subtypes of nAChR or their distribution in lymphoid tissue have ...