Impact of linkage level on inferences from big data analyses in health and medical research: an empirical study. - Bora Lee; Young-Kyun Lee; Sung Han Kim; HyunJin Oh; Sungho Won; Suk-Yong Jang; Ye Jin Jeon; Bit-Na Yoo; Jean-Kyung Bak (BMC Medical Informatics Decis. Mak., 2024)