@misc{indiciaef6f80272576b, title = {DDT induces a decrease in eggshell calcium.}, author = {J Bitman and H C Cecil and S J Harris and G F Fries}, year = {1969}, doi = {10.1038/224044a0}, url = {https://pubmed.ncbi.nlm.nih.gov/5822905/}, note = {Source identifier: 5822905} }