function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bolívar y Pieltain, C.', 2],
    ['Botero-Trujillo, Ricardo', 4],
    ['Botero-Trujillo, Ricardo & Carvalho, Leonardo S.', 6],
    ['Botero-Trujillo, Ricardo & Flórez, Eduardo', 4],
    ['Botero-Trujillo, Ricardo & Pérez, Gustavo A.', 5],
    ['Botero-Trujillo, Ricardo & Sain, Colby E. & Prendini, Lorenzo', 20],
    ['Botero-Trujillo, Ricardo & Valdez-Mondragón, Alejandro', 4],
    ['Cooke, John A. L.', 3],
    ['Cooke, John A. L. & Shadab, Mohammad U.', 6],
    ['De Armas, Luis F.', 6],
    ['Ewing, Henry Ellsworth', 4],
    ['Gertsch, Willis J.', 4],
    ['Legg, Gerald', 4],
    ['Platnick, Norman I. & Shadab, Mohammad U.', 10],
    ['Valdez-Mondragón, Alejandro & Francke, Oscar F.', 10],
    ['Other (30)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=125)',
    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);