Bultitude M, Rees J. Management of renal colic. Bmj. 2012;345:e5499.
 Tasian GE, Ross ME, Song L, Sas DJ, Keren R, Denburg MR, et al. Annual Incidence of Nephrolithiasis among Children and Adults in South Carolina from 1997 to 2012. Clinical journal of the American Society of Nephrology : CJASN. 2016;11:488-96.
 Scales CD, Jr., Smith AC, Hanley JM, Saigal CS. Prevalence of kidney stones in the United States. European urology. 2012;62:160-5.
 Curhan G. 47 - Nephrolithiasis. In: Gilbert SJ, Weiner DE, editors. National Kidney Foundation Primer on Kidney Diseases (Sixth Edition). Philadelphia: W.B. Saunders; 2014. p. 405-11.
 Romero V, Akpinar H, Assimos DG. Kidney stones: a global picture of prevalence, incidence, and associated risk factors. Reviews in urology. 2010;12:e86-96.
 Moore CL, Bomann S, Daniels B, Luty S, Molinaro A, Singh D, et al. Derivation and validation of a clinical prediction rule for uncomplicated ureteral stone--the STONE score: retrospective and prospective observational cohort studies. Bmj. 2014;348:g2191.
 Inci MF, Ozkan F, Bozkurt S, Sucakli MH, Altunoluk B, Okumus M. Correlation of volume, position of stone, and hydronephrosis with microhematuria in patients with solitary urolithiasis. Medical science monitor : international medical journal of experimental and clinical research. 2013;19:295-9.
 Argyropoulos A, Farmakis A, Doumas K, Lykourinas M. The presence of microscopic hematuria detected by urine dipstick test in the evaluation of patients with renal colic. Urological research. 2004;32:294-7.
 Ooi SB, Kour NW, Mahadev A. Haematuria in the diagnosis of urinary calculi. Annals of the Academy of Medicine, Singapore. 1998;27:210-4.
 Moher D, Liberati A, Tetzlaff J, Altman DG. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;6:e1000097.
 Higgins JP, Thompson SG. Quantifying heterogeneity in a meta-analysis. Statistics in medicine. 2002;21:1539-58.
 Harbord RM, Egger M, Sterne JA. A modified test for small-study effects in meta-analyses of controlled trials with binary endpoints. Statistics in medicine. 2006;25:3443-57.
 Kim TH, Oh SH, Park KN, Kim HJ, Youn CS, Kim SH, et al. Factors associated with absent microhematuria in symptomatic urinary stone patients. The American journal of emergency medicine. 2018.
 Desai V, Cox M, Deshmukh S, Roth CG. Contrast-enhanced or noncontrast CT for renal colic: utilizing urinalysis and patient history of urolithiasis to decide. Emergency radiology. 2018;25:455-60.
 Turk H, Un S. Predictive factors for stone disease in patients with renal colic. Archivio italiano di urologia, andrologia : organo ufficiale [di] Societa italiana di ecografia urologica e nefrologica. 2017;89:143-5.
 Shrestha R, Bista Y, Khan A. Current Diagnostic Approach and Initial Treatment Patterns for Renal Colic in Emergency Department. Journal of Nepal Health Research Council. 2017;15:38-43.
 Odoemene CA, Okere P, Ugonabo MC. Ureterolithiasis: Management in an environment with limited facilities. Nigerian journal of clinical practice. 2017;20:622-8.
 Mefford JM, Tungate RM, Amini L, Suh D, Anderson CL, Rudkin SE, et al. A Comparison of Urolithiasis in the Presence and Absence of Microscopic Hematuria in the Emergency Department. The western journal of emergency medicine. 2017;18:775-9.
 Rapp DE, Wood NL, Bassignani M, Gergoudis L, Caulkins S, Kramolowsky EV. Clinical variables and stone detection in patients with flank pain. The Canadian journal of urology. 2016;23:8441-5.
 Park YH, Jung RB, Lee YG, Hong CK, Ahn JH, Shin TY, et al. Does the use of bedside ultrasonography reduce emergency department length of stay for patients with renal colic?: a pilot study. Clinical and experimental emergency medicine. 2016;3:197-203.
 Hernandez N, Song Y, Noble VE, Eisner BH. Predicting ureteral stones in emergency department patients with flank pain: an external validation of the STONE score. World journal of urology. 2016;34:1443-6.
 Fukuhara H, Ichiyanagi O, Kakizaki H, Naito S, Tsuchiya N. Clinical relevance of seasonal changes in the prevalence of ureterolithiasis in the diagnosis of renal colic. Urolithiasis. 2016;44:529-37.
 Dorfman M, Chan SB, Hayek K, Hill C. Pyuria and Urine Cultures in Patients with Acute Renal Colic. The Journal of emergency medicine. 2016;51:358-64.
 Yan JW, McLeod SL, Edmonds ML, Sedran RJ, Theakston KD. Risk Factors Associated with Urologic Intervention in Emergency Department Patients with Suspected Renal Colic. The Journal of emergency medicine. 2015;49:130-5.
 Lee DH, Chang IH, Kim JW, Chi BH, Park SB. Usefulness of Nonenhanced Computed Tomography for Diagnosing Urolithiasis without Pyuria in the Emergency Department. Biomed Res Int. 2015;2015:810971.
 Hall TC, Stephenson JA, Rangaraj A, Mulcahy K, Rajesh A. Imaging protocol for suspected ureteric calculi in patients presenting to the emergency department. Clinical radiology. 2015;70:243-7.
 Zwank MD, Ho BM, Gresback D, Stuck LH, Salzman JG, Woster WR. Does computed tomographic scan affect diagnosis and management of patients with suspected renal colic? The American journal of emergency medicine. 2014;32:367-70.
 Abdel-Gawad M, Kadasne R, Anjikar C, Elsobky E. Value of Color Doppler ultrasound, kub and urinalysis in diagnosis of renal colic due to ureteral stones. International braz j urol : official journal of the Brazilian Society of Urology. 2014;40:513-9.
 Lallas CD, Liu XS, Chiura AN, Das AK, Bagley DH. Urolithiasis location and size and the association with microhematuria and stone-related symptoms. Journal of endourology. 2011;25:1909-13.
 Perez JA, Palmes Mde L, Ferrer JF, Urdangarain OO, Nunez AB. Renal colic at emergency departments. Epidemiologic, diagnostic and etiopathogenic study. Archivos espanoles de urologia. 2010;63:173-87.
 Xafis K, Thalmann G, Benneker LM, Stoupis C, Buggy DJ, Zimmermann H, et al. Forget the blood, not the stone! Microhaematuria in acute urolithiasis and the role of early CT scanning. Emergency medicine journal : EMJ. 2008;25:640-4.
 Serinken M, Karcioglu O, Turkcuer I, Ozkan HI, Keysan MK, Bukiran A. Analysis of clinical and demographic characteristics of patients presenting with renal colic in the emergency department. BMC research notes. 2008;1:79.
 Cupisti A, Pasquali E, Lusso S, Carlino F, Orsitto E, Melandri R. Renal colic in Pisa emergency department: epidemiology, diagnostics and treatment patterns. Internal and Emergency Medicine. 2008;3:241-4.
 Matani YS, Al-Ghazo MA. Role of helical nonenhanced computed tomography in the evaluation of acute flank pain. Asian journal of surgery. 2007;30:45-51.
 Kartal M, Eray O, Erdogru T, Yilmaz S. Prospective validation of a current algorithm including bedside US performed by emergency physicians for patients with acute flank pain suspected for renal colic. Emergency medicine journal : EMJ. 2006;23:341-4.
 Kirpalani A, Khalili K, Lee S, Haider MA. Renal colic: comparison of use and outcomes of unenhanced helical CT for emergency investigation in 1998 and 2002. Radiology. 2005;236:554-8.
 Gaspari RJ, Horst K. Emergency ultrasound and urinalysis in the evaluation of flank pain. Academic emergency medicine : official journal of the Society for Academic Emergency Medicine. 2005;12:1180-4.
 Unal D, Yeni E, Karaoglanoglu M, Verit A, Karatas OF. Can conventional examinations contribute to the diagnostic power of unenhanced helical computed tomography in urolithiasis? Urologia internationalis. 2003;70:31-5.
 Tack D, Sourtzis S, Delpierre I, de Maertelaer V, Gevenois PA. Low-dose unenhanced multidetector CT of patients with suspected renal colic. AJR American journal of roentgenology. 2003;180:305-11.
 Kobayashi T, Nishizawa K, Mitsumori K, Ogura K. Impact of date of onset on the absence of hematuria in patients with acute renal colic. The Journal of urology. 2003;170:1093-6.
 Eray O, Cubuk MS, Oktay C, Yilmaz S, Cete Y, Ersoy FF. The efficacy of urinalysis, plain films, and spiral CT in ED patients with suspected renal colic. The American journal of emergency medicine. 2003;21:152-4.
 Luchs JS, Katz DS, Lane MJ, Mellinger BC, Lumerman JH, Stillman CA, et al. Utility of hematuria testing in patients with suspected renal colic: correlation with unenhanced helical CT results. Urology. 2002;59:839-42.
 Hamm M, Knopfle E, Wartenberg S, Wawroschek F, Weckermann D, Harzmann R. Low dose unenhanced helical computerized tomography for the evaluation of acute flank pain. The Journal of urology. 2002;167:1687-91.
 Li J, Kennedy D, Levine M, Kumar A, Mullen J. Absent hematuria and expensive computerized tomography: case characteristics of emergency urolithiasis. The Journal of urology. 2001;165:782-4.
 Hamm M, Wawroschek F, Weckermann D, Knopfle E, Hackel T, Hauser H, et al. Unenhanced helical computed tomography in the evaluation of acute flank pain. European urology. 2001;39:460-5.
 Richards JR, Christman CA. Intravenous urography in the emergency department: when do we need it? European journal of emergency medicine : official journal of the European Society for Emergency Medicine. 1999;6:129-33.
 Bove P, Kaplan D, Dalrymple N, Rosenfield AT, Verga M, Anderson K, et al. Reexamining the value of hematuria testing in patients with acute flank pain. The Journal of urology. 1999;162:685-7.
 Ghali AM, Elmalik EM, Ibrahim AI, Abdulhameed E, el Tahir MI. Cost-effective emergency diagnosis plan for urinary stone patients presenting with ureteric colic. European urology. 1998;33:529-37.
 Eskelinen M, Ikonen J, Lipponen P. Usefulness of history-taking, physical examination and diagnostic scoring in acute renal colic. European urology. 1998;34:467-73.
 Gimondo P, Mastropasqua G, Cremona A, Mucciaccio C. [Early and systematic use of ultrasonography in emergency patients with renal colic: analysis of the actual diagnostic efficacy]. La Radiologia medica. 1996;92:421-4.
 Boyd R, Gray AJ. Role of the plain radiograph and urinalysis in acute ureteric colic. Journal of accident & emergency medicine. 1996;13:390-1.
 Press SM, Smith AD. Incidence of negative hematuria in patients with acute urinary lithiasis presenting to the emergency room with flank pain. Urology. 1995;45:753-7.
 Chia SJ, Lau W, Tan PK, Consigliere D, Li MK, Low CH. Ureteric colic: value of initial investigations and the outcome. Annals of the Academy of Medicine, Singapore. 1995;24:366-9.
 Elton TJ, Roth CS, Berquist TH, Silverstein MD. A clinical prediction rule for the diagnosis of ureteral calculi in emergency departments. J Gen Intern Med. 1993;8:57-62.
 Stewart DP, Kowalski R, Wong P, Krome R. Microscopic hematuria and calculus-related ureteral obstruction. The Journal of emergency medicine. 1990;8:693-5.
 Freeland P. No haematuria--no IVU. Irish journal of medical science. 1987;156:270-1.
 Dunn PM, Keller RT, Jones SR. The absence of hematuria in patients with symptomatic urinary tract stones. The Western journal of medicine. 1985;142:717-9.
 Bishop NL. The influence of emergency urography and haematuria on the diagnosis of ureteric colic. Clinical radiology. 1980;31:605-10.
 Bataille A, Wetzstein M, Hertig A, Vimont S, Rondeau E, Galichon P. Evidence of dipstick superiority over urine microscopy analysis for detection of hematuria. BMC research notes. 2016;9:435.
 Daniels B, Gross CP, Molinaro A, Singh D, Luty S, Jessey R, et al. STONE PLUS: Evaluation of Emergency Department Patients With Suspected Renal Colic, Using a Clinical Prediction Tool Combined With Point-of-Care Limited Ultrasonography. Annals of emergency medicine. 2016;67:439-48.
 Rucker CM, Menias CO, Bhalla S. Mimics of renal colic: alternative diagnoses at unenhanced helical CT. Radiographics : a review publication of the Radiological Society of North America, Inc. 2004;24 Suppl 1:S11-28; discussion S-33.
 Tao RZ, Qin ZQ, Liu FD, Lv JL. Efficacy and Safety of Tamsulosin in the Medical Expulsion Therapy for Distal Ureteral Calculi: A Systematic Review and Meta-Analysis of Placebo-Controlled Trials. Urol J. 2019;16:224-31.
 Ten Things Physicians and Patients Should Question American College of Emergency Physicians 2013-2014.
 Catalano O, Nunziata A, Sandomenico F, Siani A. Acute flank pain: comparison of unenhanced helical CT and ultrasonography in detecting causes other than ureterolithiasis. Emergency radiology. 2002;9:146-54.