Multilayer film elements for clinical analysis: Applications to representative chemical determinations. - Spayd,R.W.; Bruschi,B.; Burdick,B.A.; Dappen,G.M.; Eikenberry,J.N.; Esders,T.W.; Figueras,J.; Goodhue,C.T.; LaRossa,D.D.; Nelson,R.W.; Rand,R.N.; Wu,T.W. (Clin Chem, 1978)