Immune functions in children with classical phenylketonuria and tetrahydrobiopterin deficiencies – Tevfik Karagoz, Turgay Coskun, Imran Ozalp, Ethem Ozkaya and Fugen Ersoy 822

Intramuscular injection: Review and guidelines – Kamlesh R. Lala and Mrudula K. Lala 835

IAP and industry relationship guidelines 2003 - 847

Environmental health for practicing pediatricians – Ruth A. Etzel, Sophie J. Balk, J. Routt Reigar and Philip J. Landrigan 853

Outbreaks of killer brain disease in children: Mystery or missed diagnosis? – T. Jacob John 863

Unrecognised ventriculitis/meningitis presenting as hydrocephalus in infancy –Vrajesh Udani, Soonu Udani, Rohan Merani and Manisha Bavdekar 870

Social and economic impact of childhood asthma – Rakesh Lodha, Madhavi Puranik, Namita Kattal and S.K. Kabra 874

Role of C-reactive protein in deciding duration of antibiotic therapy in neonatal septicemia – R.S. Jaswal, R.K. Kaushal, Asha Goel and Kushla Pathania 880

Normal urinary calcium/creatinine ratios in Turkish children – Omer Ceran, Mehmet Akin, Zekeriya Aktürk, and Tamay Ozkozaci 884

Fraser-cryptophthalmos syndrome with cardiovascular malformations: A rare association – Srinivas D. Hambire, Priyanka P. Bhavsar, Meenakshi B. and Anagha V. Jayakar 888

Limb body wall complex – Sanjeev Managoli, Pushpa Chaturvedi, Krishna Y. Vilhekar and Nitin Gagane 891

Oral bisphosphonates in polyostotic fibrous dysplasia – V.V. Khadilkar, A.V. Khadilkar and G.B. Maskati 894

Preoperative aspiration for anterior mediastinal cyst with respiratory distress – Prema Menon, K.L.N. Rao and Amita Trehan 897

Lupus vulgaris – Parveen Bhardwaj and Vikram Mahajan 902

Candida parapsilosis on peripheral blood smear – Sameer Bakshi and Esteban Abella 903

Addison’s Disease – N.P. Chhangani and Pramod Sharma 904

Antiphospholipid antibody syndrome as a cause of Budd-Chiari syndrome – R.P. Khubchandani and Susan D’Souza 907

Rickets in walled city of Delhi – Anushma Sharma and D.N. Virmani 908

Oral vitamin-K administration at birth – Mukul Tiwari 909

Hepatitis A: An unusual presentation – Prakash Vaidya and Chitra Kadam 910

Massive CSF varicosity as a presenting feature of VP shunt disconnection – D.P. Mazumdar and A. Goel 911

Inguinal hernias in babies – M.S. Rao, S.K. Chowdhary and K.L.N. Rao 913

‘Air Entry’ – An adventitious entry in respiratory system examination – B.S. Karnawat 914

Posterior urethral valves and anorectal malformation: A rare association – Amar A. Shah and Anirudh V. Shah 915

Comparison of HemoCue method with the cyanmethemoglobin method for estimation of hemoglobin – Renu Saxena and Rachna Malik 917

Combined Down and Klinefelter syndrome – V. Babu Rao and K. Ghosh 917

Effect of vitamin A supplementation on childhood morbidity, mortality – A.P. Gupta 919

Modified ventilatory index (MVI) in newborns with congenital diaphragmatic hernia (CDH) – Zekeriya Ilce and Sinan Celayir 920

Brief profile of an epidemic of acute encephalopathy in western Uttar Pradesh – Vipin M. Vashishtha 920