History of the Americas 4 United States of America, USA 4 1861-1877 (American Civil War period and the era of Reconstruction) 3 Civil wars 3 Early modern warfare (including gunpowder warfare) 3 c 1860 to c 1869 3 Article 1 ERAS 1 Gender studies: women and girls 1 History of medicine 1 Law 1 Political science & theory 1 Social discrimination and social justice 1 Society & social sciences 1 United States 1 aged 1 data base 1 drug use 1 gabapentin 1 hospital patient 1 human 1 opiate use 1 outpatient 1 pain control 1 plastic surgeon 1 plastic surgery 1 postoperative pain 1 postoperative period 1 prescribing 1 prescription 1