In this case, the unobservables may represent children per mother (Brass, 1958), automobile insurance claims or accidents (Dropkin, 1959; Simon, 1961).
On the other hand, evidence exists that headache per se may represent an epileptic seizure and that in some individuals it may be the sole manifestation of epilepsy [6, 7, 11, 18 20].
The ratio between the activity of the first (SOD) and second (GPx) step of antioxidant defence, rather than the absolute levels of these enzymes per se, may represent an important determinant of antioxidant function [38].
In this context, HAART and HIV-1 infection per se may represent a greater risk for cardiovascular and lipid disorders.
However, should "fresh" material be infrequently available for dog training, thawing frozen mangy carcasses may represent a valuable alternative, as per experience in this study [ 3, 31].
We assumed that the average revenue is the consideration to be paid to Division 1 for the beds from Division 2. The average revenue per inpatient may represent the density of medical care services.
This may lie in the observation that excessive maternal caloric intake per se may represent a form of fetal malnutrition due to altered placental function and nutrient transport (obesity is commonly associated with micronutrient deficiencies) and thus program the fetus in a way similar to that observed in the setting of direct maternal undernutrition.
XRCC1-foci lacking PCNA possibly represent sites of ongoing SSBR/SP BER of endogenously generated DNA damage, e.g., of the more than the 10 AP sites that are believed to be generated per cell per day, or they may represent constitutively present DNA repair complexes in the absence of DNA damage.
Cancer risk was significantly decreased with metformin, the dose can be as little as ≤500 mg per day, which may represent a threshold effect.
To address this concern, we performed a separate logistic regression analysis among first-borns only (i.e., one birth per mother), which may represent a less biased sample.
