L. Johnston

It's the thought that counts--

L. Johnston, 1994 .

Template analysis.

L. Johnston, 1987, Journal of clinical orthodontics : JCO.

Growing like a weed

L. Johnston, 1997 .

It's all downhill from here

L. Johnston, 1987 .

Template analysis.

L. Johnston, 1987, Journal of clinical orthodontics : JCO.