TY - RPRT TI - Does reducing withdrawal severity mediate nicotine patch efficacy? A randomized clinical trial. AU - Stuart G Ferguson AU - Saul Shiffman AU - Chad J Gwaltney PY - 2006 DO - 10.1037/0022-006x.74.6.1153 UR - https://pubmed.ncbi.nlm.nih.gov/17154744/ ID - 17154744 ER -