function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 2],
    ['Bleeker, Pieter', 6],
    ['Borodin, N. A.', 1],
    ['Boulenger, George Albert', 1],
    ['Cope, Edward Drinker', 1],
    ['Day, F.', 1],
    ['Duméril, Auguste Henri André', 1],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 1],
    ['Fricke, Ronald & Allen, Gerald R. & Andréfouët, Serge', 1],
    ['Gilchrist, J. D. F. & Thompson, W. Wardlaw', 1],
    ['Gray, John Edward', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 2],
    ['Hildebrand, S. F.', 2],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 2],
    ['Zainal Abidin, Danial Hariz & Lavoué, Sébastien', 3],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);