Prompted by the outbreak of aminorex induced PH

Organized and sponsored by the WHO
Secretariat: Medical WHO officers (S. Hatano, T. Strasser)

17 participants (H. Denolin, A. Fishman, H. Gurtner, P. Harris C. Lenfant, C. Wagenvoort)

Main recommendations:

To develop a non-invasive screening test for early detection

To create a clinical and morphological classification

To establish an international registry (NIH registry 1981)

A monograph was produced by the WHO in 1975 (today available on the WHO website)