3259212 PFNA perfluorononanoic acid 812 3259196 PFNA proximal femoral nail antirotation 448 3259213 PFNA perfluorononanoate 157 3259197 PFNA proximal femoral anti-rotation intramedullary nail 6 3259204 PFNA percutaneous fine-needle aspirate 3 3259198 PFNA proximal femoral antirotation nailing 3 3259201 PFNA proximal femoral nail-A 3 3259205 PFNA PFNA group 2 3259217 PFNA proximal femur intramedullary nail 2 3259216 PFNA pulsed fast neutron analysis 2 3259211 PFNA particularly for PFOS, perfluorononanoic acid 1 3259200 PFNA period for perfluorononanoic acid 1 3259209 PFNA PFASs could for all substances but one 1 3259208 PFNA PFCAs, namely, perfluorononanoic acid 1 3259207 PFNA PFN anti-rotation 1 3259206 PFNA PFNA and LISS were significantly lower than that of PFLP 1 3259199 PFNA progressive nonfluent aphasia 1 3259202 PFNA proximal femoral bionic nail 1 3259210 PFNA Proximal Femoral Nail Antirotation System 1 3259203 PFNA proximal femoral nail antirotation-Asian version 1 3259215 PFNA systems-Proximal Femoral Nail Antirotation 1