function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dadykin, Ivan A. & Sinev, Artem Y. & Gu, Yangliang', 1],
    ['Damme, Kay Van', 1],
    ['Damme, Kay Van & Dumont, Henri J.', 4],
    ['Macêdo, Rafael Lacerda & Sousa, Francisco Diogo R.', 1],
    ['Sinev, Artem Y.', 24],
    ['Sousa, Francisco Diogo Rocha', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    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);