function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 2],
    ['Carrillo-Briceño, Jorge D. & Mora-Rojas, Laura', 3],
    ['Castex, M. N.', 2],
    ['Castex, M. N. & Castello, H. P.', 1],
    ['Castex, M. N. & Maciel, I. & Martínez Achenbach, G.', 1],
    ['De Carvalho, Marcelo R.', 1],
    ['De Carvalho, Marcelo R. & Loboda, Thiago S.', 2],
    ['De Carvalho, Marcelo R. & Rosa, Ricardo S.', 1],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 1],
    ['De, Marcelo R. & Lovejoy, Nathan R.', 4],
    ['De, Marcelo R. & Sabaj, Mark H. & Lovejoy, Nathan R.', 3],
    ['Garman, S.', 4],
    ['João Pedro Fontenelle & Marcelo R. De Carvalho', 5],
    ['Lima, Arthur De & Loboda, Thiago Silva & Gianeti, Michel Donato', 18],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 3],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    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);