function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 1],
    ['Brenes, R. R. & Arroyo, G. & Munoz, G.', 1],
    ['Cremonte, Florencia & Drago, Fabiana B.', 1],
    ['González-Acuña, Daniel & Cerda, Fabiola & López, Juana', 1],
    ['Travassos, L.', 1],
    ['Tubangui, Marcos A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=6)',
    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);