function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 16],
    ['Geiger, Daniel L.', 13],
    ['Geiger, Daniel L. & Marshall, Bruce A.', 19],
    ['Geiger, Daniel L. & Mclean, James H.', 14],
    ['Gofas, Serge & Luque, Ángel A. & Oliver, Joan Daniel', 13],
    ['Hansen, Thomas', 7],
    ['Helwerda, Renate A. & Wesselingh, Frank P.', 13],
    ['Herbert, David G.', 79],
    ['Hoffman, Leon & Kniesz, Katharina & Arbizu, Pedro Martínez', 5],
    ['Kiel, Steffen & Campbell, Kathleen A. & Gaillard, Christian', 5],
    ['Linnaeus, Carolus', 8],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 7],
    ['Ortega, José Rafael & Gofas, Serge', 12],
    ['Pacaud, Jean-Michel', 21],
    ['Simone, Luiz Ricardo L. & Cunha, Carlo M.', 29],
    ['Other (17)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=300)',
    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);