“Exploring the Link between Substance Abuse during Pregnancy and the Transtheoretical Model: A Review of Peer-Reviewed Literature”

MUST link substance abuse (ciggaretts, alcohol, drugs etc. ) during pregnancy to the Transtheoretical Model. 
MUST INCLUDE AT LEAST 3 PEER-REVIEW ARTICLES. 
Transtheoretical Model: https://sphweb.bumc.bu.edu/otlt/mph-modules/sb/behavioralchangetheories/behavioralchangetheories6.html