Letrozole in Breast Cancer Who Have Received 5 Years of Aromatase Inhibitor Therapy

BCCA - Cancer Centre for the Southern Interior, Kelowna

BCCA - Fraser Valley Cancer Centre, Surrey

BCCA - Vancouver Cancer Centre, Vancouver

BCCA - Vancouver Island Cancer Centre, Victoria

CancerCare Manitoba, Winnipeg

The Moncton Hospital, Moncton

The Vitalite Health Network - Dr. Leon Richard, Moncton

Atlantic Health Sciences Corporation, Saint John

Dr. H. Bliss Murphy Cancer Centre, St. John's

QEII Health Sciences Center, Halifax

Northeast Cancer Center Health Sciences, Greater Sudbury

Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton

Cancer Centre of Southeastern Ontario at Kingston, Kingston

London Regional Cancer Program, London

Credit Valley Hospital, Mississauga

Stronach Regional Health Centre at Southlake, Newmarket

Lakeridge Health Oshawa, Oshawa

Algoma District Cancer Program, Sault Ste. Marie

Niagara Health System, St. Catharines

Thunder Bay Regional Health Science Centre, Thunder Bay

North York General Hospital, Toronto

Toronto East General Hospital, Toronto

Odette Cancer Centre, Toronto

St. Michael's Hospital, Toronto

Mount Sinai Hospital, Toronto

Univ. Health Network-Princess Margaret Hospital, Toronto

St. Joseph's Health Centre, Toronto

Trillium Health Centre - West Toronto, Toronto

Humber River Regional Hospital, Toronto

Windsor Regional Cancer Centre, Windsor

PEI Cancer Treatment Centre,Queen Elizabeth Hospital, Charlottetown

Centre de Sante et de services sociaux de Gatineau, Gatineau

Hopital Charles LeMoyne, Greenfield Park

L'Hotel-Dieu de Levis, Lévis

Hopital Maisonneuve-Rosemont, Montreal

McGill University - Dept. Oncology, Montreal

CHUM - Hotel Dieu du Montreal, Montreal

Hopital du Sacre-Coeur de Montreal, Montreal

CHA-Hopital Du St-Sacrement, Québec

Centre hospitalier universitaire de Sherbrooke, Sherbrooke

Allan Blair Cancer Centre, Regina

Saskatoon Cancer Centre, Saskatoon

Wythenshawe Hospital, Manchester