title: Letter: Exchange of water during lactation.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000378:metabolism; D005260:Female; D007774:Lactation; D011247:Pregnancy; D051381:Rats; D014316:Tritium; D014556:Urine; D014867:Water / Q000378:metabolism*
chemical_list: D014867:Water; D014316:Tritium