1. LevineMS. Plain film diagnosis of the acute abdomen. Emerg Clin North Am1985;3:541.

2. KelvinFM, RiceRP. Radiologic evaluation of acute abdominal pain arising from the intestinal tract. Radiol Clin North Am1978;16:25.

3. BalthazarEJ. CT of small bowel obstruction. AJR Am J Roentgenol1994;162:255. CrossRef

4. NovyS, RogersLF, KirkpatrickW. Diastatic rupture of the cecum in obstructing carcinoma of the left colon. Am J Roentgenol Radium Ther Nucl Med1975;123:281. CrossRef

5. KerryRL, RansomHK. Volvulus of the colon: etiology, diagnosis, and treatment. Arch Surg1969;99:215. CrossRef

6. SawyerRB, SawyerKC. Volvulus of the colon. Am J Surg1962;104:468. CrossRef

7. KerryRL, LeeF, RansomHK. Roentgenologic examination in the diagnosis and treatment of colon volvulus. Am J Roentgenol Radium Ther Nucl Med1971;113:343. CrossRef

8. SchufflerMD, RohrmannCAJr, TempletonFE. The radiologic manifestations of idiopathic intestinal pseudoobstruction. AJR Am J Roentgenol1976;127:729. CrossRef

9. LauferI. The left lateral view in the plain‐film assessment of abdominal distention. Radiology1976;119:265. CrossRef

10. MillerRE, NelsonSW. The roentgenologic demonstration of tiny amounts of free intraperitoneal gas: experimental and clinical studies. Am J Roentgenol Radium Ther Nucl Med1971;112:574. CrossRef

11. KeefeeEJ, GagliardiRA. Significance of ileus in perforated viscus. Am J Roentgenol Radium Ther Nucl Med1973;117:275. CrossRef

12. LevineMS, ScheinerJD, RubesinSE, et al.Diagnosis of pneumoperitoneum on supine films. AJR Am J Roentgenol1991;156:731. CrossRef

13. NelsonSW. Extraluminal gas collections due to diseases of the gastrointestinal tract. Am J Roentgenol Radium Ther Nucl Med1972;115:225. CrossRef

14. SmerudMJ, JohnsonCD, StephensDH. Diagnosis of bowel infarction: a comparison of plain films and CT scans in 23 cases. AJR Am J Roentgenol1990;154:99. CrossRef

15. WiesnerW, MorteleKJ, GlickmanJN, et al.Pneumatosis intestinalis and portomesenteric venous gas in intestinal ischemia: correlation of CT findings with severity of ischemia and clinical outcome. AJR Am J Roentgenol2001;177:1319. CrossRef

16. KernagisLY, LevineMS, JacobsJE. Pneumatosis intestinalis in patients with ischemia: correlation of CT findings with viability of bowel. AJR Am J Roentgenol2003;180:733. CrossRef

17. DonnerMW, JonesBJ. The multidisciplinary approach to dysphagia. Gastrointest Radiol1985;10:194. CrossRef

18. DonnerMW, BosmaJF, RobertsonDL. Anatomy and physiology of the pharynx. Gastrointest Radiol1985;10:196.

19. RubesinSE, JessurunJ, RobertsonD, et al.Lines of the pharynx. Radiographics1987;7:217. CrossRef

20. EkbergO, WahlgrenL. Dysfunction of pharyngeal swallowing: a cineradiographic study in 854 dysphagia patients. Acta Radiol Diagn1985;26:389. CrossRef

21. EkbergO, NylanderG. Cineradiography of the pharyngeal stage of deglutition in 250 patients with dysphagia. Br J Radiol1982;55:258. CrossRef

22. EkbergO, NylanderG. Double‐contrast examination of the pharynx. Gastrointest Radiol1985;10:263. CrossRef

23. RubesinSE, JonesB, DonnerMW. Contrast pharyngography: the importance of phonation. AJR Am J Roentgenol1987;148:269. CrossRef

24. MongA, LevineMS, RubesinSE, et al.Epiglottic carcinoma as a cause of laryngeal penetration and aspiration. AJR Am J Roentgenol2003;180:207. CrossRef

25. PikusL, LevineMS, YangYX, et al.Videofluoroscopic studies of swallowing dysfunction and the relative risk of pneumonia. AJR Am J Roentgenol2003;180:1613. CrossRef

26. PerrottJW. Anatomical aspects of hypopharyngeal diverticula. Aust N Z J Surg1962;31:307. CrossRef

27. ZainoC, JacobsonHG, LepowH, et al.The pharyngoesophageal sphincter. Radiology1967;89:639. CrossRef

28. EkbergO. The cricopharyngeus revisited. Br J Radiol1986;59:875. CrossRef

29. EkbergO, NylanderG. Cineradiography of the pharyngeal stage of deglutition in 150 individuals without dysphagia. Br J Radiol1982;55:253. CrossRef

30. BachmanAL, SeamanWB, MackenKL. Lateral pharyngeal diverticula. Radiology1968;91:774. CrossRef

31. BalfeDM, HeikenJP. Contrast evaluation of structural lesions of the pharynx. Curr Probl Diagn Radiol1986;15:73. CrossRef

32. SemenkovichJW, BalfeDM, WeymanPJ, et al.Barium pharyngography: comparison of single and double contrast. AJR Am J Roentgenol1985;144:715. CrossRef

33. BachmanAL. Benign non‐neoplastic conditions of the larynx and pharynx. Radiol Clin North Am1978;16:273.

34. RubesinSE, GlickSN. The tailored double‐contrast pharyngogram. Crit Rev Diagn Imaging1988;28:133.

35. GoldsteinHM, ZornozaJ. Association of squamous cell carcinoma of the head and neck with cancer of the esophagus. AJR Am J Roentgenol1978;131:791. CrossRef

36. LevineMS, RamchandaniP, RubesinSE. Practical Fluoroscopy of the GI and GU Tracts. New York: Cambridge University Press; 2012.

37. GrazianiL, BearziI, RomagnoliA, et al.Significance of diffuse granularity and nodularity of the esophageal mucosa at double‐contrast radiography. Gastrointest Radiol1985;10:1. CrossRef

38. DibbleC, LevineMS, RubesinSE, et al.Detection of reflux esophagitis on double‐contrast esophagrams and endoscopy using the histologic findings as the gold standard. Abdom Imaging2004;29:425. CrossRef

39. LevineMS, RubesinSE, HerlingerH, et al.Double‐contrast upper gastrointestinal examination: technique and interpretation. Radiology1988;168:593. CrossRef

40. GuptaS, LevineMS, RubesinSE, et al.Usefulness of barium studies for differentiating benign and malignant strictures of the esophagus. AJR Am J Roentgenol2003;180:737. CrossRef

41. LevineMS, KresselHY, CarolineDF, et al.Barrett esophagus: reticular pattern of the mucosa. Radiology1983;147:663. CrossRef

42. GilchristAM, LevineMS, CarrRF, et al.Barrett's esophagus: diagnosis by double‐contrast esophagography. AJR Am J Roentgenol1988;150:97. CrossRef

43. LevineMS, MaconesAJ, LauferI. Candida esophagitis: accuracy of radiographic diagnosis. Radiology1985;154:581. CrossRef

44. LevineMS, WoldenbergR, HerlingerH, et al.Opportunistic esophagitis in AIDS: radiographic diagnosis. Radiology1987;165:815. CrossRef

45. LevineMS, LoevnerLA, SaulSH, et al.Herpes esophagitis: sensitivity of double‐contrast esophagography. AJR Am J Roentgenol1988;151:57. CrossRef

46. SorS, LevineMS, KowalskiTE, et al.Giant ulcers of the esophagus in patients with human immunodeficiency virus: clinical, radiographic, and pathologic findings. Radiology1995;194:447. CrossRef

47. ZimmermanSL, LevineMS, RubesinSE, et al.Idiopathic eosinophilic esophagitis in adults: the ringed esophagus. Radiology2005;236:159. CrossRef

48. WhiteSB, LevineMS, RubesinSE, et al.The small‐caliber esophagus: radiographic sign of idiopathic eosinophilic esophagitis. Radiology2010;256:127. CrossRef

49. LevineMS, ChuP, FurthEE, et al.Carcinoma of the esophagus and esophagogastric junction: sensitivity of radiographic diagnosis. AJR Am J Roentgenol1997;168:1423. CrossRef

50. LauferI, HamiltonJ, MullensJE. Demonstration of superficial gastric erosions by double contrast radiography. Gastroenterology1975;68:387.

51. DheerS, LevineMS, RedfernRO, et al.Radiographically diagnosed antral gastritis: findings in patients with and without Helicobacter pylori infection. Br J Radiol2002;75:805. CrossRef

52. LevineMS, VerstandigA, LauferI. Serpiginous gastric erosions caused by aspirin and other nonsteroidal antiinflammatory drugs. AJR Am J Roentgenol1986;146:31. CrossRef

53. SohnJ, LevineMS, FurthEE, et al.Helicobacter pylori gastritis: radiographic findings. Radiology1995;195:763. CrossRef

54. ThompsonG, SomersS, StevensonGW. Benign gastric ulcer: a reliable radiologic diagnosis?AJR Am J Roentgenol1983;141:331. CrossRef

55. LevineMS, CreteurV, KresselHY, et al.Benign gastric ulcers: diagnosis and follow‐up with double contrast radiography. Radiology1987;164:9. CrossRef

56. LevineMS, KellyMR, LauferI, et al.Gastrocolic fistulas: the increasing role of aspirin. Radiology1993;187:359. CrossRef

57. LevineMS, KongV, RubesinSE, et al.Scirrhous carcinoma of the stomach: radiologic and endoscopic diagnosis. Radiology1990;175:151. CrossRef

58. WhiteRM, LevineMS, EnterlineHT, et al.Early gastric cancer: recent experience. Radiology1985;155:25. CrossRef

59. LowVHS, LevineMS, RubesinSE, et al.Diagnosis of gastric carcinoma: sensitivity of double‐contrast barium studies. AJR Am J Roentgenol1994;162:329. CrossRef

60. ChanJKC, NgCS, IsaacsonPG. Relationship between high‐grade lymphoma and low‐grade B‐cell mucosa‐associated lymphoid tissue lymphoma (MALToma) of the stomach. Am J Pathol1990;136:1153.

61. YooCC, LevineMS, FurthEE, et al.Gastric mucosa‐associated lymphoid tissue lymphoma: radiographic findings in six patients. Radiology1998;208:239. CrossRef

62. LevineMS, MegibowAJ. Other malignant tumors of the stomach and duodenum. In: GoreRM, LevineMS(eds). Textbook of Gastrointestinal Radiology, 2nd ed. Philadelphia: WB Saunders; 2000: 627.

63. GelfandDW, DaleWJ, OttDJ, et al.Duodenitis: endoscopic–radiologic correlation in 272 patients. Radiology1985;157:577. CrossRef

64. HerlingerH, MaglinteDDT, BirnbaumBA. Clinical Imaging of the Small Intestine, 2nd ed. New York: Springer Verlag; 2000.

65. CarolineDF, HerlingerH, LauferI, et al.Small‐bowel enema in the diagnosis of adhesive obstructions. AJR Am J Roentgenol1984;142:1133. CrossRef

66. MaglinteDDT, ElmoreMF, IsenbergM, et al.Meckel's diverticulum: radiologic demonstration by enteroclysis. AJR Am J Roentgenol1980;134:925. CrossRef

67. NelsonSW, ChristoforidisAJ. The use of barium sulfate suspensions in the study of suspected mechanical obstruction of the small intestine. Am J Roentgenol Radium Ther Nucl Med1967;101:367. CrossRef

68. HerlingerH, MaglinteDDT. Jejunal fold separation in adult celiac disease: relevance of enteroclysis. Radiology1986;158:605. CrossRef

69. HorowitzAL, MeyersMA. The “hide‐bound” small bowel of scleroderma: characteristic mucosal fold pattern. Am J Roentgenol Radium Ther Nucl Med1973;119:332. CrossRef

70. GlickSN. Crohn's disease of the small intestine. Radiol Clin North Am1987;25:25.

71. Pantongrag‐BrownL, LevineMS, ElsayedAM, et al.Inverted Meckel's diverticulum: clinical, radiologic, and pathologic findings. Radiology1996;199:693. CrossRef

72. MochA, HerlingerH, KochmanML, et al.Enteroclysis in the evaluation of obscure gastrointestinal bleeding. AJR Am J Roentgenol1994;163:1381. CrossRef

73. OttDJ, GelfandDW. Colorectal tumors: pathology and detection. AJR Am J Roentgenol1978;131:691. CrossRef

74. LauferI, MullensJE, HamiltonJ. Correlation of endoscopy and double‐contrast radiography in the early stages of ulcerative and granulomatous colitis. Radiology1976;118:1. CrossRef

75. BrahmaniaM, ParkJ, SvartaS, et al.Incomplete colonoscopy: maximizing completion rates of gastroenterologists. Can J Gastroenterol2012;26:589.

76. KelvinFM, GardinerR, VasW, et al.Colorectal carcinoma missed on double contrast barium enema study: a problem in perception. AJR Am J Roentgenol1981;137:307. CrossRef

77. KungJW, LevineMS, GlickSN, et al.Colorectal cancer: screening double‐contrast barium enema examination in average‐risk adults over than 50 years. Radiology2006;240:725. CrossRef

78. StevensonGW, GoodacreR, JacksonR, et al.Dysplasia to carcinoma transformation in ulcerative colitis. AJR Am J Roentgenol1984;143:108. CrossRef

79. RaoPM, RheaJT, NovellineRA, et al.Helical CT with only colonic contrast material for diagnosing diverticulitis: prospective evaluation of 150 patients. AJR Am J Roentgenol1998;170:1445. CrossRef

80. SheimanL, LevineMS, LevinA, et al.Chronic diverticulitis: clinical, radiographic, and pathologic findings. AJR Am J Roentgenol2008;191:522. CrossRef

81. LauferI. The double contrast enema: myths and misconceptions. Gastrointest Radiol1976;1:19. CrossRef

82. LevineMS, PiccolelloML, SollenbergerLC, et al.Solitary rectal ulcer syndrome: a radiologic diagnosis?Gastrointest Radiol1986;11:187. CrossRef

83. EversK, LauferI, GordonRL, et al.Double‐contrast enema examination for detection of rectal carcinoma. Radiology1981;140:635. CrossRef

84. GelfandDW. Complications of gastrointestinal radiologic procedures: I. Complications of routine fluoroscopic studies. Gastrointest Radiol1980;5:293. CrossRef