@misc{indiciaec22fd3da7b26, title = {Developing an empirical typology for regular exercise.}, author = {Gregory J Norman and Wayne F Velicer}, year = {2003}, doi = {10.1016/j.ypmed.2003.09.011}, url = {https://pubmed.ncbi.nlm.nih.gov/14636797/}, note = {Source identifier: 14636797} }