1. Dried blood spot screening for cystic fibrosis in the newborn;Crossley, J.P.; Elliot, R.P.; Smith, P.A.;Lancet,1979
2. Sensitive trypsin assay for dried blood spot specimens as a screening procedure for early detection of cystic fibrosis;King, D.N.; Heeley, A.F.; Walsh, M.P.; Kuzemko, J.A.;Lancet,1979
3. Screening for cystic fibrosis;Hammond, K.; Naylor, E.; Wilken, B.,1987
4. Two tier screen for cystic fibrosis;Adriaenssens, K.; Janssen, H.; Van Soom, H.;Lancet,1981
5. Cystic fibrosis screening by dried blood spot trypsin assay: results in 75 000 newborn infants;Wilken, B.; Brown, A.R.D.; Urwin, R.; Brown, D.A.,1983