Brizan JB, Amabebe E. Maternal obesity as a risk factor for caesarean delivery in sub-Saharan Africa: a systematic review. Life (Basel). 2022 Jun 17;12(6):906. doi: 10.3390/life12060906
Lawson DH, Jick H, Rothman KJ. Coffee and tea consumption and breast disease. Surgery. 1981 Jan 1;90(5):801-3.