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In a final series of experiments, the Francis Crick team used state-of-the-art, ultradeep mutational profiling of small samples of normal lung tissue and found EGFR and KRAS driver mutations in 18% and 33% of normal lung samples, respectively

Incapsula incident ID: 180000780089656848-110939327390028685

24 Further, snuff use in pregnancy is associated with increased risk of preterm birth, but only with modest effects on birth weight, 25 which may explain why the risk of SIDS associated with snuff use was only slightly attenuated when adjusting for preterm and SGA births

Thus, the split-tipping mechanism maintained more effective filter ventilation at elevated flow rates