| Http://: https://www.ncbi.nlm.nih.gov/pubmed/18340504 | 
| Http://: https://ghr.nlm.nih.gov/condition/prolidase-deficiency | 
| Http://: https://www.ncbi.nlm.nih.gov/pubmed/1972707 | 
| Http://: https://www.ncbi.nlm.nih.gov/pubmed/18340504 | 
| Http://: https://ghr.nlm.nih.gov/condition/prolidase-deficiency | 
| Http://: https://www.ncbi.nlm.nih.gov/pubmed/1972707 |