References
Ammann RW，Hammer B，Fumagalli I.Chronic pancreatitis in Zurich，1963-1972.Clinical findings and followup studies of 102 cases.Digestion.1973；9：404-15.
Andersen BN，Pedersen NT，Scheel J，et al.Incidence of alcoholic chronic-pancreatitis in copenhagen.Scand J Gastroenterol.1982；17：247-52.
Andriulli A，Botteri E，Almasio PL，et al.Smoking as a cofactor for causation of chronic pancreatitis:a metaanalysis.Pancreas.2010；39：1205-10.
Balaji LN，Tandon RK，Tandon BN，et al.Prevalence and clinical-features of chronic-pancreatitis in southern India.Int J Pancreatol.1994；15：29-34.
Balakrishnan V，Unnikrishnan AG，Thomas V，et al.Chronic pancreatitis.A prospective nationwide study of 1，086 subjects from India.JOP.2008；9：593-600.
Capitaine Y.Epidemiology of chronic pancreatitis in Switzerland.In:Sarles H，Johnson C，Sauniere JF，editors.Pancreatitis；Oxford，Blackwell，1991.
Cavallini G，Frulloni L，Pederzoli P，et al.Long-term follow-up of patients with chronic pancreatitis in Italy.Scand J Gastroenterol.1998；33：880-9.
Coté GA，Yadav D，Slivka A，et al.Alcohol and smoking as risk factors in an epidemiology study of patients with chronic pancreatitis.Clin Gastroenterol Hepatol.2011；9：266-73.
Dani R，Mott CB，Guarita DR，et al.Epidemiology and etiology of chronic pancreatitis in Brazil:a tale of two cities.Pancreas.1990；5：474-8.
Dite P，Stary K，Novotny I，et al.Incidence of chronic pancreatitis in the Czech Republic.Eur J Gastroenterol Hepatol.2001；13：749-50.
Dzieniszewski J，Jarosz M，Ciok J.Chronic pancreatitis in Warsaw.Mater Med Pol.1990a；3：202-4.
Dzieniszewski J，Jarosz M，Ciok J.Chronic pancreatitis in Warsaw.Mater Med Pol.1990b；22：202-4.
Falk DE，Yi HY，Hiller-Sturmhofel S.An epidemiologic analysis of co-occurring alcohol and tobacco use and disorders:findings from the National Epidemiologic Survey on Alcohol and Related Conditions.Alcohol Res Health.2006；29：162-71.
Frulloni L，Gabbrielli A，Pezzilli R，et al.Chronic pancreatitis:report from a multicenter Italian survey（PanCroInfAISP）on 893 patients.Dig Liver Dis.2009；41：311-7.
Garg PK，Tandon RK.Survey on chronic pancreatitis in the Asia-Pacific region.J Gastroenterol Hepatol.2004；19：998-1004.
Gastard J，Joubaud F，Farbos T，et al.Etiology and course of primary chronic pancreatitis in Western France.Digestion.1973；9：416-28.
Hartwig W，Werner J，Ryschich E，et al.Cigarette smoke enhances ethanol-induced pancreatic injury.Pancreas.2000；21：272-8.
Hirota M，Shimosegawa T，Masamune A，et al.The sixth nationwide epidemiological survey of chronic pancreatitis in Japan.Pancreatology.2012；12：79-84.
Hirota M，Shimosegawa T，Masamune A，et al.The seventh nationwide epidemiological survey for chronic pancreatitis in Japan:clinical significance of smoking habit in Japanese patients.Pancreatology.2014；14（6）：490.
Imoto M，DiMagno EP.Cigarette smoking increases the risk of pancreatic calcification in late-onset but not early-onset idiopathic chronic pancreatitis.Pancreas.2000；21：115-9.
Irving HM，Samokhvalov AV，Rehm J.Alcohol as a risk factor for pancreatitis.A systematic review and metaanalysis.JOP.2009；10：387-92.
Ishii K，Nakamura K，Takeuchi T，et al.Chronic calcifying pancreatitis and pancreatic carcinoma in Japan.Digestion.1973；9：429-37.
Jaakkola M，Nordback I.Pancreatitis in finland between 1970 and 1989.Gut.1993；34：1255-60.
James O，Agnew JE，Bouchier IA.Chronic pancreatitis in England:a changing picture？Br Med J.1974；2：34-8.
Johnson CD，Hosking S.National statistics for diet，alcohol-consumption，and chronic-pancreatitis in england and wales，1960-88.Gut.1991；32：1401-5.
Jupp J，Fine D，Johnson CD.The epidemiology and socioeconomic impact of chronic pancreatitis.Best Pract Res Clin Gastroenterol.2010；24：219-31.
Kristiansen L，Gronbæk M，Becker U，et al.Risk of pancreatitis according to alcohol drinking habits:a population-based cohort study.Am J Epidemiol.2008；168：932-7.
Lankisch PG，Assmus C，Maisonneuve P，et al.Epidemiology of pancreatic diseases in Luneburg County.A study in a defined german population.Pancreatology.2002a；5：469-77.
Lankisch PG，Assmus C，Maisonneuve P，et al.Epidemiology of pancreatic diseases in Luneburg County.A study in a defined german population.Pancreatology.2002b；2：469-77.
Lankisch PG，Breuer N，Bruns A，et al.Natural history of acute pancreatitis:a long-term population-based study.Am J Gastroenterol.2009；104：2797-805；quiz 2806
Levy P，Barthet M，Mollard BR，et al.Estimation of the prevalence and incidence of chronic pancreatitis and its complications—a prospective survey in adults attending gastroenterologists in France.Gastroenterol Clin Biol.2006；30：838-44.
Levy P，Dominguez-Munoz E，Imrie C，et al.Epidemiology of chronic pancreatitis:burden of the disease and consequences.United European Gastroenterol J.2014；2：345-54.
Lowenfels AB，Maisonneuve P，Grover H，et al.Racial factors and the risk of chronic pancreatitis.Am J Gastroenterol.1999；94（3）：790-4.
Luaces-Regueira M，Iglesias-Garcia J，Lindkvist B，et al.Smoking as a risk factor for complications in chronic pancreatitis.Pancreas.2014；43：275-80.(https://www.daowen.com)
Maisonneuve P，Lowenfels AB，Mullhaupt B，et al.Cigarette smoking accelerates progression of alcoholic chronic pancreatitis.Gut.2005；54（4）：510.
Maisonneuve P，Frulloni L，Mullhaupt B，et al.Impact of smoking on patients with idiopathic chronic pancreatitis.Pancreas.2006；33：163-8.
Malka D，Hammel P，Sauvanet A，et al.Risk factors for diabetes mellitus in chronic pancreatitis.Gastroenterology.2000；119：1324-32.
Marks IN，Bank S，Louw JH.Chronic pancreatitis in the Western Cape.Digestion.1973；9：447-53.
Maruyama K，Otsuki M.Incidence of alcoholic pancreatitis in Japanese alcoholics—survey of male sobriety association members in Japan.Pancreas.2007；34：63-5.
Melia WM，Sims MM，Whitehouse DP，et al.Chronic pancreatitis in the British Army 1978-1989.J R Army Med Corps.1992；138：126-8.
Moshal MG.A study of chronic pancreatitis in Natal.Digestion.1973；9：438-46.
Muniraj T，Aslanian HR，Farrell J，et al.Chronic pancreatitis，a comprehensive review and update.Part I:epidemiology，etiology，risk factors，genetics，pathophysiology，and clinical features.Dis Mon.2014；60：530-50.
Osullivan JN，Nobrega FT，Brown AL，et al.Acute and chronic pancreatitis in rochester，minnesota，1940-1969.Gastroenterology.1972；62：373-9.
Otsuki M，Tashiro M.Chronic pancreatitis and pancreatic cancer，lifestyle-related diseases.Intern Med.2007；46：109-13.
Pandol SJ，Gorelick FS，Gerloff A，et al.Alcohol abuse，endoplasmic reticulum stress and pancreatitis.Dig Dis.2010；28：776-82.
Pedrazzoli S，Pasquali C，Guzzinati S，et al.Survival rates and cause of death in 174 patients with chronic pancreatitis.J Gastrointest Surg.2008；12：1930.
Pezzilli R，Morselli-Labate AM，Fantini L，et al.Assessment of the quality of life in chronic pancreatitis using Sf-12 and EORTC Qlq-C30 questionnaires.Dig Liver Dis.2007；39：1077-86.
Rebours V，Boutron-Ruault MC，Jooste V，et al.Mortality rate and risk factors in patients with hereditary pancreatitis:uni-and multidimensional analyses.Am J Gastroenterol.2009；104：2312-7.
Robles-Diaz G，Vargas F，Uscanga L，et al.Chronic pancreatitis in Mexico City.Pancreas.1990；5：479-83.
Ryu JK，Lee JK，Kim YT，et al.Clinical features of chronic pancreatitis in Korea:a multicenter nationwide study.Digestion.2005；72：207-11.
Sadr-Azodi O，Sanders DS，Murray JA，et al.Patients with celiac disease have an increased risk for pancreatitis.Clin Gastroenterol Hepatol.2012；10：1136-1142.e3.
Talamini G，Bassi C，Butturini G，et al.Outcome and quality of life in chronic pancreatitis.JOP.2001；2：117-23.
Talamini G，Bassi C，Falconi M，et al.Smoking cessation at the clinical onset of chronic pancreatitis and risk of pancreatic calcifications.Pancreas.2007；35：320-6.
Tao N，Sussman S，Nieto J，et al.Demographic characteristics of hospitalized patients with alcoholic liver disease and pancreatitis in los angeles county.Alcohol Clin Exp Res.2003；27：1798-804.
The Copenhagen Pancreatitis Study Group.An interim report from a prospective epidemiological multicentre study.Scand J Gastroenterol.1981；2：305-12.
Thuluvath PJ，Imperio D，Nair S，et al.Chronic pancreatitis.Long-term pain relief with or without surgery，cancer risk，and mortality.J Clin Gastroenterol.2003；36：159-65.
Tinto A，Lloyd D，Kang JY，et al.Acute and chronic pancreatitis—diseases on the rise:a study of hospital admissions in England 1989/90-1999/2000.Aliment Pharmacol Ther.2002；16：2097-105.
Uys CJ，Bank S，Marks IN.The pathology of chronic pancreatitis in Cape Town.Digestion.1973；9：454-68.
Wang LW，Li ZS，Li SD，et al.Prevalence and clinical features of chronic pancreatitis in china a retrospective multicenter analysis over 10 years.Pancreas.2009；38：248-54.
Wehler M，Nichterlein R，Fischer B，et al.Factors associated with health-related quality of life in chronic pancreatitis.Am J Gastroenterol.2004；99：138-46.
Whitcomb DC，Yadav D，Adam S，et al.Multicenter approach to recurrent acute and chronic pancreatitis in the United States:the North American Pancreatitis Study 2（NAPS2）.Pancreatology.2008；8：520-31.
Whitcomb DC，LaRusch J，Krasinskas AM，et al.Common genetic variants in the CLDN2 and PRSS1-PRSS2 loci alter risk for alcohol-related and sporadic pancreatitis.Nat Genet.2012；44：1349-54.
Yadav D，Lowenfels AB.The epidemiology of pancreatitis and pancreatic cancer.Gastroenterology.2013；144：1252-61.
Yadav D，Hawes RH，Brand RE，et al.Alcohol consumption，cigarette smoking，and the risk of recurrent acute and chronic pancreatitis.Arch Intern Med.2009；169：1035-45.
Yadav D，Slivka A，Sherman S，et al.Smoking is underrecognized as a risk factor for chronic pancreatitis.Pancreatology.2010；10：713-9.
Yadav D，Timmons L，Benson JT，et al.Incidence，prevalence，and survival of chronic pancreatitis:a population-based study.Am J Gastroenterol.2011；106：2192-9.
Yang AL，Vadhavkar S，Singh G，et al.Epidemiology of alcohol-related liver and pancreatic disease in the united states.Arch Intern Med.2008；168：649-56.