function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Jung, Tae Won & Kim, Jong Guk & Kim, Min-Seop', 5],
    ['Lee, Chi-Woo & Min, Gi-Sik', 2],
    ['Lee, Chi-Woo & Tomikawa, Ko & Min, Gi-Sik', 1],
    ['Lee, Chi-Woo & Tomikawa, Ko & Nakano, Takafumi & Min, Gi-Sik', 2],
    ['Oguro, Yosio', 1],
    ['Shintani, Aki & Umemura, Shinya & Nakano, Takafumi', 1],
    ['Sidorov, D. A.', 1],
    ['Sidorov, Dmitry A. & Gontcharov, Andrey A.', 5],
    ['Sídorov, Dmitry & Labay, Vjacheslav & Gontcharov, Andrey', 6],
    ['Tomikawa, Ko & Abe, Yuji & Nakano, Takafumi', 1],
    ['Tomikawa, Ko & Nakano, Takafumi & Sato, Anna & Onodera, Yutaka', 1],
    ['Uéno, Masuzo', 2],
    ['Zhao, Shuangyan & Hou, Zhonge', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);