TY - RPRT TI - Ovulation prediction from cyclic changes in salivary electrical conductivity. AU - K Loewit AU - F Hoppichler AU - G Ledermüller AU - G Widhalm PY - 1990 DO - 10.1016/0002-9378(90)91281-g UR - https://pubmed.ncbi.nlm.nih.gov/2386182/ ID - 2386182 ER -