00296nas a2200109   4500000000100000008004100001100001400042700001300056700002100069245009000090490000600180       2015                            d1 aMachado G1 aMaher C.1 aFerreira Manuela00aLack of efficacy of paracetamol (acetaminophen) for low back pain and osteoarthritis.0 v5