The phrase "ascertain approximately" is not correct in standard written English.
The word "ascertain" implies a level of certainty or precision, which contradicts the term "approximately" that suggests estimation or vagueness.
Example: "We need to ascertain approximately how many attendees will be present at the event."
Alternatives: "determine roughly" or "find out about".
We have shown that this method ascertains approximately 90% of incident cancers.[13] Our end points were first primary incident cancers, defined according to the Surveillance Epidemiology and End Result (SEER) criteria, with minor modifications for malignancies of the head and neck, esophagus, pancreas, and prostate, as described previously.[14] [18] Skin cancer was restricted to melanoma only.
The experiment was conducted as in Figure 2d, but contained lower concentration of wild-type Ire1KR32 (0.3 μM or approximately 0.06 Km) to ascertain a regime in which subsaturating conditions (k2/K1/2) were maintained during the titration.
Women were interviewed twice during pregnancy at approximately 13 and 26 weeks gestational age to ascertain information on demographic characteristics, lifestyle habits, work history, and medical history.
To ascertain whether unrelated subordinates forage relatively less, we visited each nest approximately every 45 minutes on sunny afternoons for four days (Period 1), recording which individuals were present (27±0.5 surveys per nest, mean ± standard error).
Under the assumption of a broad and most complete extraction of the organic wastewater pollutants by the SSPE and fractionation protocol used in this study, total toxicity caused by organic xenobiotics in wastewater could approximately be ascertained by testing the recombinant fractions (Figure 5).
To ascertain that the activity level of T. carbonaria in the laboratory environment was approximately equivalent to that in natural conditions [23], the number of individual bees leaving the nesting box and entering the flight arena was counted.
A study designed to ascertain the self-reported use of influenza vaccine among pediatric oncologists found that approximately 30% did not think that influenza infection is important in children with cancer (8 ) and consequently do not recommend immunization.
Tita et al. 4 estimated that as many as 4800 caesarean deliveries would be needed to ascertain a 33% difference in neonatal sepsis with 80% power, assuming a baseline incidence of approximately 5%.
After adjustment for infant mortality the completeness of the twin ascertainment is high with approximately 90%% twins ascertained before and up to 1968, and complete ascertainment of all live born twin pairs since 1968 [ 26].
As approximately one third of patients perceived that these discussions could be harmful, physicians should first ascertain patient preferences before discussing their life expectancies.
