function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amin, Omar Mohamed & Heckmann, Richard A. & Ha, Nguyen Van', 1],
    ['Bray, Rodney A. & Spencer Jones, Mary E. & Lewis, John W.', 1],
    ['Hernández-Orts, Jesús S. & Kuchta, Roman & Semenas, Liliana', 5],
    ['Lopes, Daniela A. & Gomes, Delir Correa & Knoff, Marcelo', 1],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 1],
    ['Santos, Cláudia P. & Gibson, David I. & Tavares, Luiz E. R.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);