title: Low natural killer-cell activity and immunoglobulin levels associated with smoking in human subjects.
mesh_terms: D000328:Adult; D000367:Age Factors; D002478:Cells, Cultured; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis; D007694:Killer Cells, Natural / Q000276:immunology*; D008297:Male; D008545:Melanoma / Q000276:immunology*; D008875:Middle Aged; D012397:Rosette Formation; D012737:Sex Factors; D012907:Smoking / Q000150:complications*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins