This function calculate BSA (Body Surface Area) in square metre using DuBois & DuBois formula (DuBois D, DuBois EF)
get_BSA(wt_kg, ht_cm)
(Numeric) Weight in kilogram
(Numeric) Height in centimetre
Print report to console and return BSA invisibly
# BSA in square metre
get_BSA(wt_kg = 70, ht_cm = 180)
#> BSA = 1.886 square metre (wt = 70 kg, ht = 180 cm)
# Input can be vectorized
get_BSA(wt_kg = 70:72, ht_cm = 180:182)
#> BSA = 1.886 square metre (wt = 70 kg, ht = 180 cm)
#> BSA = 1.905 square metre (wt = 71 kg, ht = 181 cm)
#> BSA = 1.924 square metre (wt = 72 kg, ht = 182 cm)