Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on ``Proton Polarization Shifts in Electronic and Muonic
  Hydrogen''   We demonstrate that criticisms concerning our work nucl-th/9704043, made in
the recent preprint hep-ph/9903352, are unfounded. The improvements over our
results claimed in hep-ph/9903352 are in fact spurious, being based mainly on
misunderstandings and on dubious theoretical models.

20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat