Al - Shukriji T. Use of the analysis of the main (axial axis method) to diagnose the most important variables affecting the birth of preterm infants. JES [Internet]. 2007 Jan. 1 [cited 2025 Sep. 10];19(1):221-9. Available from: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42425