TY - RPRT TI - Practice differences between the United States and Canada. AU - Rosa Liperoti AU - Claudio Pedone AU - Roberto Bernabei AU - Giovanni Gambassi PY - 2004 DO - 10.1111/j.1532-5415.2004.52579_8.x UR - https://pubmed.ncbi.nlm.nih.gov/15571566/ ID - 15571566 ER -