<prompt> Intrauterine growth retardation can be caused by all exceptNicotinelcoholPropranololPhenothiazine  <response>: Causes of LUG small for dateEnvironmentalEthnic, racial and geographicSocial and economic statusNutritionalMaternalThe short stature of motherPrimi or grand multiparaYoung adolescent mother below 20 yearsLow pre-pregnancy weightSmoking and tobacco or alcohol abuseMaternal illness : anemia, heart disease, malariaComplication of pregnancy : pre-eclampsia, hypertensionPrevious similar babyPlacental factorsDisorders of implantation of the placenta, abruptio placentaextensive placental infarcts and structural or functionabnormalities of the placenta. Single umbilical arteryvascular thrombosis also predispose to the birth of a small babyFetal factorsFirstborn babies are generally smallerGenetics or chromosomal aberrationsTwining and multiple pregnanciesIntrauterine infectionsNote:- In CRF there is hypertension which is one of the causes of IUGR.Propranolol also causes IUGR. 