TY - GEN AU - Peiris,Alan N AU - Bailey,Beth A AU - Grant,William B AU - Mascitelli,Luca TI - Vitamin D testing SN - 1474-547X PY - 2012///0521 KW - Humans KW - Vitamin D KW - analogs & derivatives KW - Vitamin D Deficiency KW - diagnosis N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1016/S0140-6736(12)60712-0 ER -