Question: is this a 2) strong advice, 1) weak advice 0) no advice?

Some studies showed that BSE provided no decrease in mortality rates (Lee et al, 2010; The Canadian Task Force on Preventive Health Care, 2011) In contrast to these studies, before the routine mammography examination, 65% of women between 40 and 45 years of age noticed breast cancer by themselves (Harvey et al, 1997). 
user
This is no advice
assistant