Efficacy, safety, and sample quality of ultrasound?guided synovial needle biopsy in clinical practice and research : a prospective observational study - Romão, Vasco C.; Polido Pereira, Joaquim; Barros, Rita; Luis, Rita; Vidal, Bruno; Vieira De Sousa, Elsa Cristina; Vitorino, Emília; Humby, Frances; Kelly, Stephen; Pitzalis, Costantino; Saraiva, Fernando; Fonseca, João Eurico (2020)