CMAJ March 1, 2005; 172 (5_suppl). doi:10.1503/cmaj.1040302.
© 2005 CMA Media Inc. or its licensors
All editorial matter in CMAJ represents the opinions of the authors and not necessarily those of the Canadian Medical Association.
Fetal alcohol spectrum disorder: Canadian guidelines for diagnosis
Albert E. Chudley,
Julianne Conry,
Jocelynn L. Cook,
Christine Loock,
Ted Rosales and
Nicole LeBlanc
From the Children's Hospital, Health Sciences Centre, Departments of Pediatrics and Child Health and Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Man. (Chudley); the Department of Educational and Counselling Psychology and Special Education, University of British Columbia; Asante Centre for Fetal Alcohol Syndrome, Maple Ridge, B.C. (Conry); the Department of Obstetrics and Gynecology, University of Ottawa, Ottawa, Ont. (Cook); the Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, B.C. (Loock); the Provincial Medical Genetics Program; the Department of Pediatrics, Memorial University of Newfoundland, St. John's, Nfld. (Rosales); and the Department of Pediatrics, Georges Dumont Hospital, Moncton, N.B. (LeBlanc).

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Fig. 1: Lip-philtrum guide. A 5-point pictorial scale for measuring philtrum smoothness and upper lip thinness. Features are measured independently; for example, an individual can have a rank 5 philtrum and a rank 1 upper lip. Photo: Susan Astley, FAS DPN
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Fig. 2: Palpebral fissure length. To measure palpebral fissure length, identify the inner corner or encanthion (en) and outer corner or excanthion (ex) for each eye. Have the patient look up so that ex can be seen clearly. With a clear flexible ruler held in the horizontal plane, measure the length of each ex-en interval immediately below the eye, being careful not to touch the eye or eyelashes. Plot the result on an appropriate nomogram chart to determine the percentile or standard deviation for each eye. Photo: Albert Chudley
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