(1) For positive controls, sections containing rectal carcinoma and normal mucosa were employed and for negative controls the primary antibodies were excluded.

(2) Both of the positive control strains adhered strongly to HEp-2 cells.

(3) Hydergine used for positive control drug.

(4) Positive Control: PMA stimulated human peripheral blood mononuclear cells.

(5) Bluetongue Virus (BTV), Bovine anti-, Positive Control.

(6) Positive Control Germinal center in a tonsil or a reactive lymph node. Sentencedict.com

(7) Marrow in positive control group was hypoplastic or marked hypoplastic, and morphology of granulocyte series was abnormal.

(8) Rats received two intravenous injections of either heparinase III to digest HS or neuraminidase to remove neuraminic acids (positive control).

(9) Both keyboard and mouse are from Logitech and both are comfortable to use and give easy, positive control.

(10) E-ADM and MMC containing active aldehyde group were used as experimental drug, while 5-Fu no containing active aldehyde group as positive control drug.

(11) Bioactivity test on isolated rat heart failure model suggested 1 could increase coronary blood flow and myocardial con- tractive power compared with positive control ouabain.

(12) The injury protectived control group A had lower MST, Ep, PFC, TFL than positive control group.

(13) S, lectin, Pat and Cryllla were cloned to be positive control.

(14) Methods Rats were randomly divided into negative control (no treatment) group, positive control (1% sulfadiazine silver cream) group and test (CSP) group, respectively.

(15) This paper determined the hemolytic rates of the two kinds of carbon arc lamp(CAL)dusts, at the same time, taked quartz dust as a positive control.

(16) The model rats were administered with equisetum extract prophylactically, while gemfibrozil was used as positive control drug.

(17) MethodsAmmonium bicarbonate was as the experimental group, trichlorfon as a positive control group, and water as a negative control group.

(18) Glucose blocks induction of the lac operon by utilizing a positive control mechanism.

(19) The MG-63 cells treated by hexamethylene bisacetamide(HMBA) were investigated as a positive control of induced differentiation.

(20) Determination of monoamine and metabolites: Mice grouping was the same as above. The drug in positive control group was replaced by imipramine.

(21) Methods: Effect of AAM was observed in puromycin amino-nucleoside induced nephrotic syndrome model of rat, and pravachol, an effective lipid lowering medicine, was used as Positive control.

(22) Methods:Effects on the pentobarbital sleeping time of mice. Zolpidem tartrate tablets was the positive control drug.

(23) Antagonism of apomorphine-induced hypothermia: Mice grouping was the same as above; the drug in positive control group was replaced by imipramine.