function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 6],
    ['Gordon, Dennis P.', 1],
    ['Gordon, Dennis P. & Sutherland, Judy E. & Perez, Brenda A.', 4],
    ['Grischenko, Andrei V. & Dick, Matthew H. & Mawatari, Shunsuke F.', 2],
    ['Grischenko, Andrei V. & Taylor, Paul D. & Mawatari, Shunsuke F.', 1],
    ['Martha, Silviu O. & Taylor, Paul D. & Rader, William L.', 3],
    ['Reverter-Gil, Oscar & Souto, Javier', 2],
    ['Rosso, Antonietta & Sciuto, Francesco & Sanfilippo, Rossana', 3],
    ['Taylor, Paul D. & Tan, Shau-Hwai Aileen', 1],
    ['Tilbrook, Kevin J.', 2],
    ['Vieira, Leandro M. & Almeida, Ana C. S. & Winston, Judith E.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);