mohsen bahrami school of traditional medicine, tehran university of medical sciences, tehran, ir iran; school of traditional medicine, tehran university of medical sciences, behesht st. hafez st., tehran, ir iran. tel: +98-2636770987 reza mastery farahani department of anatomy, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran esmail nazem school of traditional medicine, tehran university of medical sciences, tehran, ir iran mohammad kamalinejad department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, ir iran mansoor keshavarz school of traditional medicine, tehran university of medical sciences, tehran, ir iran; department of physiology, school of medicine, tehran university of medical sciences, tehran, ir iran alireza nikbakht nasrabadi tehran school of nursing and midwifery, tehran university of medical sciences, tehran, ir iran