function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beljaev, Еvgeniy A. & Titova, Olga L.', 1],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Clarke, Charles E.', 1],
    ['Makhov, I. A. & Beljaev, E. A.', 1],
    ['Meyrick, Edward', 3],
    ['Rybalkin, S. A. & Beljaev, E. A.', 1],
    ['Schmidt, Olga', 32],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Weidlich, Michael', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=44)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);