A study of the negro tuberculosis problem in Philadelphia
Mossell, Sadie T.
A study of the negro tuberculosis problem in Philadelphia - Philadelphia : Henry Phipps Inatitute, 1923. - 29 p. ; 16 cm.
A study of the negro tuberculosis problem in Philadelphia - Philadelphia : Henry Phipps Inatitute, 1923. - 29 p. ; 16 cm.