@misc{indiciae1561a6a707fb, title = {Phenylketonuria screening: avoiding a source of error by simplifying the procedure.}, author = {P C Clemens and C Plettner}, year = {1989}, doi = {10.1093/ajcp/91.6.747}, url = {https://pubmed.ncbi.nlm.nih.gov/2658543/}, note = {Source identifier: 2658543} }