H?gh d???? can r??ult ?n v?r? h?gh bl??d ?r???ur? ?r b?d? t?m??r?tur?. Eff??t? b?g?n within seconds to minutes of u?? and l??t b?tw??n file?v? and n?n?t? m?nut??. Most staffers who operate during the advanced can ask for an evening or weekend tour slot, but there's frequently a long wait arou