E von Mutius, F D Martinez, C Fritzsch, T Nicolai, P Reitmeir, H-H Thiemann et al
von Mutius E, Martinez F D, Fritzsch C, Nicolai T, Reitmeir P, Thiemann H et al.
Skin test reactivity and number of siblings
BMJ 1994; 308 :692
doi:10.1136/bmj.308.6930.692