function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['González-Acuña, Daniel & Cerda, Fabiola & López, Juana', 1],
    ['Hechinger, Ryan F.', 4],
    ['Hechinger, Ryan F. & Miura, Osamu', 2],
    ['Kontrimavichus, V. L. & Bakh-Meteva, T. L.', 1],
    ['Pinto, Hudson Alves & Melo, Alan Lane De', 1],
    ['Reimer, Lothar W.', 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);