Singh V, Rana RK, Singhal R. Application of Cluster Sampling Techniques for Analyzing the Effect of Dhatri Lauha – An Ayurvedic Formulation in Iron Deficiency Anaemia. IJAM [Internet]. 2011 Sep. 13 [cited 2025 Aug. 8];2(2). Available from: https://www.ijam.co.in/index.php/ijam/article/view/70