@misc{indiciae3a9c109da41d, title = {Symptoms during normal pregnancy: a prospective controlled study.}, author = {M Zib and L Lim and W A Walters}, year = {1999}, doi = {10.1111/j.1479-828x.1999.tb03122.x}, url = {https://pubmed.ncbi.nlm.nih.gov/10687753/}, note = {Source identifier: 10687753} }