function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ayoro, Halamoussa Joëlle & Segniagbeto, Gabriel Hoinsoudé', 1],
    ['Ceríaco, L. M. P. & De Sá, S. & Bandeira, S. & Valério, H.', 1],
    ['Conradie, Werner & Branch, William R. & Watson, Gillian', 1],
    ['Conradie, Werner & Keates, Chad & Verburgt, Luke', 1],
    ['Kirchhof, Sebastian & Wasonga, Victor & Mazuch, Tomáš', 1],
    ['Santos, Bruna S. & Marques, Mariana P. & Bauer, Aaron M.', 1],
    ['Wasonga, Domnick V. & Channing, Alan', 2],
    ['Willems, Frank & Channing, Alan', 2],
    ['Wilson, Lyle & Channing, Alan', 1],
    ['Zimkus, Breda M. & Larson, Joanna G.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);