title: Choosing the types of biological sample to collect in longitudinal birth cohort studies.
abstract: There are a variety of biological samples that can be collected from participants in longitudinal studies. Here we outline those that are particularly useful in longitudinal birth cohort studies starting in pregnancy, and discuss their advantages and disadvantages.
authors.affiliation: Centre for Child and Adolescent Health, Department of Community Based Medicine, University of Bristol, Bristol, UK. cdrwj@bristol.ac.uk
authors.forename: Richard
authors.initials: R
authors.lastname: Jones
authors.forename: Jean
authors.initials: J
authors.lastname: Golding
mesh_terms: D015415:Biomarkers / Q000032:analysis; D001769:Blood; D012634:Bodily Secretions; D002657:Child Development; D003625:Data Collection; D005260:Female; D005312:Fetal Blood; D006197:Hair; D006801:Humans; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D008137:Longitudinal Studies; D008297:Male; D008427:Maternal Health Services; D011247:Pregnancy; D012107:Research Design; D013048:Specimen Handling / Q000379:methods*; D014070:Tooth
chemical_list: D015415:Biomarkers