function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Animalesto, Gloria & Dewi, Kartika & Apriyanti, Yuni', 7],
    ['Arai, Hisao P. & Smith, John W.', 12],
    ['Dewi, Kartika & Palm, Harry W.', 9],
    ['Garrido-Olvera, Lorena & García-Prieto, Luis', 3],
    ['González-Solís, David & Mariaux, Jean', 1],
    ['Lopes, Daniela A. & Gomes, Delir Correa & Knoff, Marcelo', 1],
    ['Luque, José L. & Aguiar, Julio C. & Vieira, Fabiano M.', 2],
    ['Moravec, František & Barton, Diane P.', 1],
    ['Moravec, František & Chaabane, Amira & Justine, Jean-Lou', 1],
    ['Moravec, František & Justine, Jean-Lou', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    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);