Perhaps you should try some spelling variations:
ventilation algorithm » estimation algorithm, estimation algorithms, evolution algorithm
optimized algorithms » optimized algorithm, optimizer algorithms, optimization algorithms
invasive ventilation » adaptive ventilation
objective optimized » objective optimal, objective optimization
modified invasive » modified passive

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• Performing a fuzzy search may retrieve terms with similar spellings: (( modified objective optimized algorithms ) OR ( modified invasive ventilation algorithm ))~.
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