2011e-396 2011i-705 2017e-875 2017j-035 618 abdomen abnormalities anatomy anesthesia atlases biomedicalengineering biophysicsandbiologicalphysics blood-vessels casestudies cerebrovasculardisease cerebrovasculardisorders childhood children congenitalabnormalities congresses criticalcare criticalcaremedicine cross-sectional diagnosis diagnosticimaging diagnosticuse differential diseases dopplereffect dopplerultrasonography emergencies emergencymedicalservices emergencymedicine etc examination examinations female fetaldiseases fetus generativeorgans genitaldiseases gynecologicdiseases gynecologicexamination head histologicaltechniques homogenization(differentialequations) imaging industrialapplications ininfancy instrumentation mathematicalmodels mathematics medical medicalandradiationphysics medicalphysics medicalradiology methods nuclearmedicine obstetrics osteoporosis pain painmanagement physics physiologicaleffect pregnancycomplications prenatal prenataldiagnosis qs525u471981 qt34i686u1980 questions r895-920 radiography radiology treatment ultrasonicdiagnosis ultrasonicimaging ultrasonics ultrasonicsinbiology ultrasonicsinobstetrics ultrasonictesting ultrasonictherapy ultrasonicwaves ultrasonography ultrasound wb141h972d1975a wb18o27u1987 wb289a877d1982 wb289d5361980 wb289h972b(p) wb289k88d1981 wi39b623d1990 wn17 wn208 wn208d53572011 wn289f596d1995 wq17k75i1974 wq17k75i1980 x-rays