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	1.	Some observations on the treatment of premature retinopathy with variable oxygen tension. [electronic resource] by Valk, L E Producer: 19670701 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 152 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Proceedings: Hemp in connection with ophthalmology. [electronic resource] by Valk, L E Producer: 19740308 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 167 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	SUCCESSES AND SET-BACKS IN THE TREATMENT OF DIABETIC RETINOPATHY WITH ANABOLIC STEROIDS DURING THE LAST FIVE YEARS. [electronic resource] by VALK, L E Producer: 19961201 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 146 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	[Favorable influence of 19-norandrostenolone phenylpropionate on the diabetic retinopathy]. [electronic resource] by VALK, L E Producer: 19981101 In: Bulletins et memoires de la Societe francaise d'ophtalmologie vol. 72 Availability: No items available. Save to lists Add to cart (remove)
	5.	Proceedings: A new possibility to treat superficial eye injuries with an ointment, presenting the advantages, but not the disadvantages of local application of corticosteroids. A double-blind trial in the effect of oxyphenbutazone 10 percent eye ointment (Tanderil) as a therapy in superficial eye injuries. [electronic resource] by Valk, L E Producer: 19740308 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 167 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	[SUCCESSES AND FAILURES IN THE TREATMENT OF DIABETIC RETINOPATHY WITH ANABOLIC STEROIDS IN THE PAST 5 YEARS]. [electronic resource] by VALK, L E Producer: 19961201 In: Nederlands tijdschrift voor geneeskunde vol. 107 Availability: No items available. Save to lists Add to cart (remove)
	7.	The favourable influence of nandrolone-decanoate on the eye and kidney in some cases of Kimmelstiel-Wilson syndrome. Some problems in assessing kidney biopsies. [electronic resource] by Valk, L E Vergroesen, J A Producer: 19700906 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 160 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	8.	A case of familial dwarfism, with choroideremia, myopia, posterior polar cataract, and zonular cataract. [electronic resource] by BINKHORST, P G VALK, L E Producer: 20020501 In: Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde vol. 132 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	9.	[A fifth phakomatosis. Nevus epitheliomatodes multiplex]. [electronic resource] by HERMANS, E H GROSFELD, J C VALK, L E Producer: 19981101 In: Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete vol. 11 Availability: No items available. Save to lists Add to cart (remove)
	10.	[Naevus epitheliomatodes multiplex, a fifth type of phakomatosis]. [electronic resource] by HERMANS, E H GROSFELD, J C VALK, L E Producer: 19981101 In: Nederlands tijdschrift voor geneeskunde vol. 103 Availability: No items available. Save to lists Add to cart (remove)
	11.	Insulin deficiency and diabetes. [electronic resource] by GERRITZEN, F NOACH, E L VAN WIJHE, M VALK, L E Producer: 20020501 In: Acta endocrinologica vol. 25 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)