Official position of the Brazilian Association of Bone Assessment and Metabolism (ABRASSO) on the evaluation of body composition by densitometry: part I (technical aspects)-general concepts, indications, acquisition, and analysis - Maeda, Sergio Setsuo; Paula, Francisco Jose Albuquerque de; Borges, João Lindolfo Cunha; Albergaria, Ben-Hur; Ushida, Marcela; Souza, Guilherme Cardenaz de; Mendonça, Laura Maria Carvalho de; Prado, Mirley do; Pinheiro, Marcelo de Medeiros; Peters, Bárbara Santarosa Emo; Martini, Lígia Araújo; Antunes, Hanna Karen Moreira; et al. (Advances in Rheumatology, 2022)