The impact of vitamin D deficiency on clinical, biochemical and metabolic parameters in primary hyperparathyroidism Gözde ¿engül Ayçiçek; Berna ¿mge Aydo¿an; Mustafa ¿ahin; R¿fat Emral; Murat Faik Erdo¿an; Sevim Güllü; Nilgün Ba¿kal; Demet Çorapç¿o¿lu;

Current status of iodisation in pregnant women in Asturias, Spain Carmen Sánchez Blanco; Marina García Cancelo; Cristina González Martínez; Leire Cardo González; Marta Diéguez Felechosa;

Effects of the COVID-19 pandemic on gestational diabetes in Castilla-La Mancha (Spain) Dulce M.ª Calderón Vicente; Amparo Marco Martínez; Inés Gómez García; Rosa Quílez Toboso; Iván Quiroga López; Manolo Delgado Rey; Javier Gargallo Vaamonde; María Olmos Alemán; Raquel Miralles Moragrega; César Gonzalvo Díaz; Javier González López;