the least developed and developing countries constitute two third of the members the world trade organizations (wto). these groups of countries have different views and concerns on international trade issues. as far as development is concerned, they have different needs and their economic system is often weak and fragile and therefore, they need extra protection. the wto agreements contain spec...

Studies of occupational exposures have made major contributions to our understanding of human carcinogenesis. About one third of the factors identified as definite or probable human carcinogens were first investigated in the workplace and these exposures exact a considerable toll on working populations. There are many additional workplace exposures that are suspect carcinogens that require furt...

Lichen planopilaris is a disease that appears with lymphocytic cicatricial alopecia. It is considered a follicular variant of lichen planus. The examination of affected areas shows alopecia with perifollicular erythema and scaling, revealing a predilection for hair follicles. The involvement of children is uncommon, with few reports in this population in the literature. This study presents a cl...

We present a model for the fully developed proximity effect in superconductor-ferromagnet heterostructures. Within the circuit-theory approximation, we evaluate the Green functions, the density of states, and the Josephson current which depend essentially on the magnetic configuration.

E752 CMAJ, August 9, 2011, 183(11) © 2011 Canadian Medical Association or its licensors Apreviously well 54-year-old woman was admitted to hospital for investigation of bilateral pain in her legs that prevented her from walking. She had a threeweek history of pain, which started in the knees and progressed to involve the muscles of her lower limbs diffusely. This pain was associated with mild s...

Authors: Stephanie S Liu 1 6 Rebecca CY Leung 1 7 Karen KL Chan 1 8 Annie NY Cheung 2 9 Hextan YS Ngan 1§ 10 11 12 13 14 § Corresponding author 15 16 17 Institutions: Department of Obstetrics & Gynaecology 1 18 Department of Pathology 2 19 Queen Mary Hospital 20 The University of Hong Kong, Hong Kong 21 22 23 24 Address for correspondence: 25 Prof. Hextan Yuen-Sheung Ngan 26 Department of Obste...