function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo', 35],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 36],
    ['Anton Lamboj', 30],
    ['Boulenger, George Albert', 62],
    ['Chan, Jeffery C. F. & Tsang, Alphonse H. F. & Yau, Sze-man', 29],
    ['Hanssens, M.', 16],
    ['Heckel, J. J.', 15],
    ['Hui, Tan Heok & Peng, Kelvin Lim Kok & Huan, Liew Jia', 28],
    ['Juan J. Schmitter-Soto', 59],
    ['Kullander, Sven O.', 43],
    ['Mcmahan, Caleb D. & Matamoros, Wilfredo A. & Piller, Kyle R.', 16],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 22],
    ['Poll, M.', 43],
    ['Sparks, J. S.', 21],
    ['Steindachner, F.', 25],
    ['Other (326)', 883]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1363)',
    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);