[15]  This refers to the open surgical removal of a stone from the ureter.  Rollo, pp. 141-142. [17]  Provided he refrained from carrying, pushing or pulling weights weighing more than 15 lbs. [18]  Final Medical Report dated 30 January 2003, issued by Dr. Mary Ann D. Barrientos of the Associated Medical & Clinical Services, Inc.; id. [19]  Records, p. 50. [20]  Id. at 44-47. [21]  Petitioner Masangcays Position Paper, p. 3; rollo, pp. 14. [22]  Annex I of the Petition; id. at 36. [23]  Annex G of the Petition; id. at 34-35. [24]  Stones found in the ureter. [25]  Respondents Position Paper, p. 7; records, p. 36. [26]  Id. [27]  Id. [28]  Id. [29]  Annex L of the Petition; rollo, pp. 54-59. [30]  Id. at 67. [31]  Id. at 130-131. [32]  Id. at 124-127. [33]  Id. at 130. [34]  Id. at 17-18. [35]  CBL Transit, Inc. v. National Labor Relations Commission, 469 Phil. 363, 371 (2004). [36]  Alfaro v. Court of Appeals, 416 Phil. 310, 318 (2001). [37]  San Juan De Dios Educational Foundation Employees Union-Alliance of Filipino Workers v. San Juan De Dios Educational Foundation, Inc., G.R. No. 143341, 28 May 2004, 430 SCRA 193, 205-206. [38]  G.R. No. 154798, 20 October 2005, 473 SCRA 559. [39]  As amended by POEA Department Order No. 4 and POEA Memorandum Circular No. 9, both series of 2000. [40]  As amended by POEA Memorandum Circular No. 55, series of 1996. [41]  387 Phil. 612, 619 (2000). [42]  Uremia is the term generally applied to the clinical syndrome in patients suffering from profound loss of renal function. [43]  The presence of renal/kidney stones. [44]  Harrisons Principles of Internal Medicine, Vol. 2, (13th edition), p. 1253. [45]  Id. [46]  Proof of chronicity is also provided by the demonstration of bilateral reduction of kidney size by scout film, ultrasonography, intravenous pyelography, or tomography. Other findings of long-standing renal failure, such as renal osteodyastrophy or symptoms of uremia, also help to establish this syndrome. Several laboratory abnormalities are often regarded as reliable indicators of chronicity of renal disease, such as anemia, hyperphosphatemia or hypocalcemia, but there are not specific x x x. In contrast, the finding of broad casts in the urinary sediment x x x is specific for chronic renal failure, the wide diameters of these casts reflecting the compensatory dilation and hypertrophy of surviving nephrons. Protenuria is a frequent but nonspecific finding, as is hematuria. Chronic obstructive uropathy polycystic and medullary cystic disease, analgesic nephrophaty, and the inactive end stage of any chronic tubulointerstitial nephrophaty are conditions in which the urine often contains little or no protein cells, or casts even though nephron destruction has progressed to chronic renal failure; id. [47]  Sealanes Marine Services, Inc. v. National Labor Relations Commission, G.R. No. 84812, 5 October 1990, 190 SCRA 337, 345-346. [48]  Harrisons Principles of Internal Medicine, supra note 44 at 2493. [49]  Id. at 2494. [50]  Supra note 38. [51]  Id. at 568. [52]  Likewise Sec. 32 of the 2000 POEA Amended Standard Terms and Conditions Governing the Employment of Filipino Seafarers on Board Ocean-Going Vessels. [16]