function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Callmander, Martin W. & Durbin, Olivier D. & Lack, Hans-Walter', 1],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Julius, Avelinah & Kajita, Tadashi & Utteridge, Timothy M. A.', 2],
    ['Julius, Avelinah & Siti-Munirah, Mat Yunoh', 1],
    ['Julius, Avelinah & Syahida-Emiza, Suhaimi', 1],
    ['Julius, Avelinah & Tagane, Shuichiro & Kajita, Tadashi', 1],
    ['Julius, Avelinah & Utteridge, Timothy M. A.', 3],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 1],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Magtoto, Liezel M. & Tamayo, Maverick N. & Udasco, Leonardo C.', 1],
    ['Mao, Shi-Zhong & Hu, Chi-Ming', 1],
    ['Sleumer, Hermann Otto', 3],
    ['Stone, Benjamin Clemens Masterman', 3],
    ['Suh, Soo-Jung', 3],
    ['Takeuchi, Wayne N.', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);