title: Mixed blessings for middle-aged mothers.
authors.forename: P
authors.initials: P
authors.lastname: Heeb
authors.forename: M W
authors.initials: MW
authors.lastname: Brinkhof
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005075:Biological Evolution; D005260:Female; D006801:Humans; D008136:Longevity; D008423:Maternal Age; D018566:Pregnancy, High-Risk; D012641:Selection, Genetic