%0 Journal Article %T The nature and management of labor pain: part I. Nonpharmacologic pain relief. %A Leeman, Lawrence %A Fontaine, Patricia %A King, Valerie %A Klein, Michael C %A Ratcliffe, Stephen %J American family physician %V 68 %N 6 %P 1109-12 %@ 0002-838X %D 2003-10-23 %~ DeepDyve