title: Acoustic output upper limits proposition: should upper limits be retained?
authors.affiliation: Bioacoustics Research Laboratory, Department of Electrical and Computer Engineering, University of Illinois, 405 N Mathews, Urbana, IL 61801, USA.
authors.forename: William D
authors.initials: WD
authors.lastname: O'Brien
authors.forename: John G
authors.initials: JG
authors.lastname: Abbott
authors.forename: Mel E
authors.initials: ME
authors.lastname: Stratmeyer
authors.forename: Gerald R
authors.initials: GR
authors.lastname: Harris
authors.forename: Mark E
authors.initials: ME
authors.lastname: Schafer
authors.forename: Tariq A
authors.initials: TA
authors.lastname: Siddiqi
authors.forename: Christopher R B
authors.initials: CR
authors.lastname: Merritt
authors.forename: Francis A
authors.initials: FA
authors.lastname: Duck
authors.forename: Phillip J
authors.initials: PJ
authors.lastname: Bendick
mesh_terms: D000162:Acoustics; D004059:Diffusion of Innovation; D005260:Female; D006801:Humans; D016365:Liability, Legal; D011247:Pregnancy; D012106:Research; D012449:Safety; D016216:Ultrasonography, Prenatal / Q000009:adverse effects / Q000191:economics / Q000592:standards*