title: Nonparental care and infant health: do number of hours and number of concurrent arrangements matter?
authors.affiliation: Department of Developmental Psychology-Behavioural Science Institute, Radboud University Nijmegen, Montessorilaan 3, Nijmegen, The Netherlands. r.beijers@psych.ru.nl
authors.forename: Roseriet
authors.initials: R
authors.lastname: Beijers
authors.forename: Jarno
authors.initials: J
authors.lastname: Jansen
authors.forename: Marianne
authors.initials: M
authors.lastname: Riksen-Walraven
authors.forename: Carolina
authors.initials: C
authors.lastname: de Weerth