| allergy and immunology | A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder. (12 Dec 1998) |
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| modern genetics | That body of method and analysis that perceives genetics as the study of the economy of nucleic acids and associated compounds. (05 Mar 2000) |
| history of medicine, early modern | The period of the history of medicine from 1451 through 1600 a.d. History of medicine, 15th cent. And history of medicine, 16th cent. Are also available. (12 Dec 1998) |
| history of medicine, modern | The period of the history of medicine from 1601 a.d. To the present. (12 Dec 1998) |
| immunology | <study> A subfield of biology that deals with the study of antigens and the immuneprocess and how humans and higher animals fight off disease. (09 Oct 1997) |
| transplantation immunology | A general term for the complex phenomena involved in allo- and xenograft rejection by a host and graft vs host reaction. Although the reactions involved in transplantation immunology are primarily thymus-dependent phenomena of cellular immunity, humoral factors also play a part in late rejection. (12 Dec 1998) |