Foster et al., Circ. 2008
LV mass was estimated by M-mode echocardiography in 440 healthy nonobese reference children (birth to 21 years) from Boston Children's Hospital.
...these could easily be included in echocardiography software, which would allow automated generation of an LV mass-for-height z score and percentile for each child undergoing echocardiography.

Note: the study population had the following characteristics:
- age range: (0 - 21)
- ht range: (47 - 191)
Data entered for patients outside of these limits should be used with caution.
Circulation. 2008 May 27;117(21):2769-75.