When resources (organs, vaccines and so forth) are scarce, the Complete Lives systems blends five different approaches (excluding first come first served, sickest first and reciprocity) but is weighted in favor of saving the most years of life. However, it also emphasizes the importance of saving the large investment of nurture and education spent on an adolescent. It would not favor the young when the prognosis is poor and the number of years of life saved would not be great, when dealing with scarcity.