[lemma=□] □ □
[lemma=be] □ □
[lemma=necessary] □ □
If antiretroviral postexposure prophylaxis is offered , the following information should be discussed with the patient : a ) the unknown efficacy and known toxicities of antiretrovirals , b ) the critical need for frequent dosing of medications , c ) the close follow-up that is necessary , d ) the importance of strict compliance with the recommended therapy , and e ) the necessity of immediate initiation of treatment for maximal likelihood of effectiveness . They did n't send teachers , they did n't send materials , which are necessary , teaching materials necessary for the studies . In cases of emergency where immediate access is necessary , residence hall students waive their right of advance notice . What else is necessary , Dialectic puts together for itself , combining and dividing , until it has reached perfect Intellection . Bronchoscopy : Bronchoscopy is not necessary unless an alternative cause , such as an inhaled foreign body , is suspected.Balloon occlusionConsider balloon occlusion or embolization of the aberrant systemic arteries at the time of catheterization.Some patients may have a considerable shunt through this anomalous circuit to the extent that , once the segment has been removed , the improvement in cardiovascular status may be striking.If surgical resection is necessary , risk of vascular complications is greatly reduced with this procedure .