MedicineNet
- An Alpha-1 antitrypsin deficiency article with details such as what it is, normal lungs and how they work, smoking, risk factors, how it is inherited, signs, symptoms and treatment.
- http://www.medicinenet.com/alpha_1_antitrypsin_deficiency/article.htm

Merck Manual: Alpha1-Antitrypsin Deficiency1
- Offers information including description, symptoms, diagnosis, and treatment. Explains what alpha1-antitrypsin is and why it is important.
- http://www.merck.com/mmhe/sec10/ch136/ch136f.html

Alpha-1 Antitrypsin Deficiency Association
- Non-profit organization offering information and support to patients, caregivers, and families effected by this disease.
- http://www.alpha1.org

Alpha-1 Advocacy Alliance
- Offers information about this disorder, resources for medical support, advocacy, public policy, health tips, and free membership.
- http://www.alpha1advocacy.org/index.html

Canadian Liver Foundation: Alpha-1 Antitrypsin Deficiency
- Reviews the cause, symptoms, risk of lung and liver disease, and treatment.
- http://www.liver.ca/Liver_Disease/Childrens_Liver_Diseases/Alpha1_Antitrypsin_Deficiency.aspx

University of Cambridge
- Laboratory in Cambridge, UK, researching the cause and treatment of alpha1-antitrypsin deficiency.
- http://www.cimr.cam.ac.uk/investigators/lomas/profile.html

Pediatric Oncall
- Offers a description of alpha–l antitrypsin, including the affects on the liver and how it presents.
- http://www.pediatriconcall.com/fordoctor/diseasesandcondition/alpha1deficiency.asp

Understanding Alpha-1 Antitrypsin Deficiency
- Information on signs and symptoms of this disorder, as well as risk factors and treatment.
- http://www.nlm.nih.gov/medlineplus/ency/article/000120.htm

Spiderspun
- A haven for those affected by Alpha-1 Antirypsin Deficiency. Facts, chat rooms, assistance programs, and reference material.
- http://www.spiderspun.net

Late Manifestation of Alpha-1-antitrypsin Deficiency in the Adult
- Literature review of late manifestations including hepatic decompensation and hepatocellular cancer in alpha-1-antitrypsin deficiency.
- http://www.ikp.unibe.ch/lab2/A1AT.html

Patient UK
- A list of resources and support for persons living in the UK who are interested in Alpha-1 Antitrypsin Deficiency.
- http://www.patient.co.uk/showdoc.asp?doc=90

Alpha 1 Awareness Alliance
- A site where members of the medical professions and the public can find information about alpha 1-antitrypsin- deficiency. Includes news, reports and links.
- http://www.kama.u-net.com