function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cann, John Mr.', 1],
    ['Gray, John Edward', 1],
    ['Hoser, Raymond', 2],
    ['Iverson, John B.', 8],
    ['Thomson, Scott & Amepou, Yolarnie & Anamiato, Jim', 6],
    ['Thomson, Scott & Georges, Arthur', 3],
    ['Thomson, Scott A. & Friol, Natalia R. & White, Arthur', 1],
    ['Thomson, Scott Andrew Mr. & Georges, Arthur Prof. Dr.', 1],
    ['Wells, Richard W. & Wellington, Ross', 1],
    ['de Vis, Charles Walter', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);