Authors: Maria Cristina Santoro Biazotti; Walter Pinto Junior; Maria Cecília Romano Maciel de Albuquerque; Litsuko Shimabukuro Fujihara; Cláudia Haru Suganuma; Renata Bednar Reigota; Carmen Sílvia Bertuzzo Journal: Einstein (Sao Paulo) Date: 2015 Jan-Mar