function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cavallari, Daniel C. & Salvador, Rodrigo B.', 28],
    ['Hansen, Thomas', 16],
    ['Harzhauser, Mathias', 246],
    ['Helwerda, Renate Ariane & Wesselingh, Frank Pieter', 22],
    ['Herbert, David G.', 157],
    ['Ketwetsuriya, Chatchalerm & Karapunar, Baran', 8],
    ['Kiel, Steffen & Sami, Marco & Taviani, Marco', 5],
    ['Linnaeus, Carolus', 71],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 21],
    ['Mclean, James Hamilton', 18],
    ['Ortega, José Rafael & Gofas, Serge', 9],
    ['Rosenfeld, Sebastian & Aldea, Cristian & Mansilla, Andres', 5],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 5],
    ['Simone, Luiz Ricardo L. & Cunha, Carlo M.', 12],
    ['Vilvens, Claude & Williams, Suzanne T.', 25],
    ['Other (29)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=715)',
    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);