Embodiments include a system for determining cardiovascular information for a patient. Ground moving target indicator radar is used to collect radar data which is then filtered to suppress intensity of the clutter ridge. The present invention also relates to an ink composition containing the composition, an image-forming method and an image-forming apparatus using the composition, and a recording medium applying the composition. The operator cabin also comprises a door for closing the access opening and a set of controls for allowing the operator to control the tree processing vehicle. The method includes obtaining MOM ether of 5,5\u2032-diallylbiphenyl-2,2\u2032-diol or a derivative or analogue thereof and subsequently converting the MOM ether of 5,5\u2032-diallylbiphenyl-2,2\u2032-diol into magnolol or a derivative or analogue thereof. With this rotary drum, signals can be certainly reproduced from recording tracks with narrowed widths by using the multiple reproducing heads arranged on the rotary drum.