function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['EbrahimK, Walaa & BarbarK, Ziad', 1],
    ['Hernandez, J. R. & Piepenbring, M. & Rios, M. B. V.', 3],
    ['Junior, Alcindo Da Silva Martins & Gomes, Paulo Weslem Portal', 3],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 3],
    ['Tabe, Affoussatou & Aime, M. Catherine & Yorou, Nourou Soulemane', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);