TY - RPRT TI - Physical activity and erectile dysfunction: meta-analysis of population-based studies. AU - J Y W Cheng AU - E M L Ng AU - J S N Ko AU - R Y L Chen PY - 2006 DO - 10.1038/sj.ijir.3901521 UR - https://pubmed.ncbi.nlm.nih.gov/16929337/ ID - 16929337 ER -