Letrozole in Treating Postmenopausal Women With Metastatic Breast Cancer

Albert Einstein Comprehensive Cancer Center, The Bronx

Cancer Research Network, Inc., Hollywood

Pharm Research, Pinecrest

Oncology-Hematology Group of South Florida, Miami

Cancer Research Network Inc., Plantation

Good Samaritan Medical Center, West Palm Beach

Dial Research Associates, Inc., Nashville

Memphis Cancer Center, Memphis

Oncology Partnership Network, Cincinnati

Joliet Oncology/Hematology Associates, Ltd., Joliet

Carle Cancer Center, Urbana

Illinois Oncology, Ltd., Belleville

Memorial Medical Center, Springfield

Southwest Oncology Association, Lafayette

Center for Oncology Research and Treatment, Medical City Hospital, Dallas

Intermountain Hematology/Oncology Associates, Inc., Salt Lake City

New Mexico Oncology-Hematology, Albuquerque

Long Beach Memorial Breast Center, Long Beach

Alta Bates Comprehensive Cancer Center, Berkeley

Cascade Cancer Center, Kirkland