@misc{indiciae70a73e13325c, title = {Changes in cotinine levels during pregnancy.}, author = {R P Ford and P J Schuter and D M Tappin}, year = {1998}, doi = {10.1111/j.1479-828x.1998.tb02957.x}, url = {https://pubmed.ncbi.nlm.nih.gov/9521390/}, note = {Source identifier: 9521390} }