function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 4],
    ['Delvare, Gérard & Genson, Gwenaelle & Borowiec, Nicolas', 4],
    ['Howard, Leland O.', 1],
    ['Menakadevi, C. & Manickavasagam, S.', 1],
    ['Rose, Mike & Zolnerowich, Gregory', 4],
    ['Schmidt, Stefan & Barro, Paul De & Jamieson, Lisa', 1],
    ['Shih, Yuan Tung & Polaszek, Andrew & Dubey, Anil Kumar', 7],
    ['Ward, Samantha E. & Shih, Yuan Tung & Ko, Chiun-Cheng', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);