function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blasco-Costa, Isabel & Montero, F. E. & Gibson, David Ian', 1],
    ['Blasco-Costa, Isabel & Pankov, P. & Gibson, David Ian', 2],
    ['Fischthal, Jacob H.', 1],
    ['Manter, Harold W.', 1],
    ['Marzoug, Douniazed & Rima, Mohamed & Boutiba, Zitouni', 1],
    ['Overstreet, Robin M.', 2],
    ['Rekharani, Z. & Madhavi, R.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);